solid

Borrowed from English solid. Doublet of solet and soled.


plasma

plasmâu (plural)
plasma
blasma (soft)
mhlasma
phlasma


ether

cy-noun

ether f (usually uncountable, plural ethra or ethera)

ethra (plural)
ethera (plural)
ether
hether (prothesis-h)
aether (alternative)

luminiferous aether
luminiferous aether#English

(uncountable, physics, historical) luminiferous aether (a substance formerly thought to fill all unoccupied space that allowed electromagnetic waves to pass through it and interact with matter, without interacting with them itself)

(uncountable, organic chemistry) ether, diethyl ether (C₄H₁₀O)

(countable) an ether (one of a class of organic compounds containing an oxygen atom bonded to two hydrocarbon groups)


mast

mast m (plural mastiau or mestys or mestydd)

mastiau (plural)
mestys (plural)
mestydd (plural)
mast
fast (soft)


drain

drain f (collective, singulative draenen)

draenen (singulative)
drain
ddrain (soft)
nrain
draen (alternative)
draenennau (alternative)

From Proto-Brythonic *draɣen, from Proto-Celtic *dragenā (“sloetree, blackthorn, Prunus spinosa”) (compare Old Irish draigen, modern Irish draighean), from Proto-Indo-European *dʰergʰ- (“blackbush, sloe tree”).

inh

rhoi ddim drain

to not give two hoots, to not care a button


gwraidd

cy-noun

gwraidd m (collective, singulative gwreiddyn)

gwreiddyn (singulative)
gwraidd
wraidd (soft)
ngwraidd

From Middle Welsh gwreidd, from Proto-Celtic *wradyos (compare Cornish gwreydh, Breton gwrizienn), from pre-Celtic *wr̥h₂dyo-, from Proto-Indo-European *wréh₂ds.


perihelion

perihelion m (plural perihelionau or perihelia)

perihelionau (plural)
perihelia (plural)
perihelion
berihelion (soft)
mherihelion
pherihelion

Borrowed from English perihelion, from English perihelium + -on (noun suffix), the former from Late Latin perihelium, from Ancient Greek περι- (peri-, “around, surrounding”) + ἥλῐος (hḗlĭos, “the sun”), the latter from -ον (-on, noun suffix).


nod

cy-noun

nod m (plural nodau or nodion, not mutable)

Borrowed from English node, from Latin nōdus.


caul

caul m (usually uncountable, plural ceuliau or ceulau or ceulion or ceulon)

ceuliau (plural)
ceulau (plural)
ceulion (plural)
ceulon (plural)
caul
gaul (soft)
nghaul
chaul

From Middle Welsh keul, from Proto-Brythonic *kaɣul, from Vulgar Latin coāgulum.

(botany) cheese-rennet, lady's bedstraw (Galium verum)

Oxalis acetosella
Oxalis acetosella#Translingual

(botany) wood sorrel (Oxalis acetosella)


ester

Internationalism borrowed from English ester.


halogen

halogen m (plural halogenau, not mutable)

1937, R. O. Davies, Elfennau Cemeg (Elements of Chemistry), University of Wales Press

"Another element belonging to the halogen family is fluorine."

Elfen arall yn perthyn i deulu’r halogenau yw ffluorin.


Mawrth

From Middle Welsh Mawrth, from Proto-Brythonic *Mo̦rθ, borrowed from Latin mārtius. Compare Cornish Merth, Breton Meurzh.


mynydd

mynyddoedd (plural)
mynydd
fynydd (soft)

From Middle Welsh mynyð, from Proto-Brythonic *mönɨð, from Proto-Celtic *moniyos (compare Cornish menydh, Breton menez), from Proto-Indo-European *men- (“to tower, stand out”) (compare Latin mōns).


bwrw

cy-verb

bwrw (first-person singular present bwriaf)

bwriaf (first-person present singular)
bwriaf (first-person future indicative present singular)
bwri (future indicative present second-person singular)
bwria (future indicative present singular third-person)
bwriwn (first-person future indicative plural present)
bwriwch (future indicative plural present second-person)
bwriant (future indicative plural present third-person)
bwrir (future impersonal indicative present)
bwriwn (conditional first-person singular)
bwriwn (first-person imperfect indicative singular)
bwrit (conditional second-person singular)
bwrit (imperfect indicative second-person singular)
bwriai (conditional singular third-person)
bwriai (imperfect indicative singular third-person)
bwriem (conditional first-person plural)
bwriem (first-person imperfect indicative plural)
bwriech (conditional plural second-person)
bwriech (imperfect indicative plural second-person)
bwrient (conditional plural third-person)
bwrient (imperfect indicative plural third-person)
bwrid (conditional impersonal)
bwrid (imperfect impersonal indicative)
bwriais (first-person preterite singular)
bwriaist (preterite second-person singular)
bwriodd (preterite singular third-person)
bwriasom (first-person plural preterite)
bwriasoch (plural preterite second-person)
bwriasant (plural preterite third-person)
bwriwyd (impersonal preterite)
bwriaswn (first-person pluperfect singular)
bwriasit (pluperfect second-person singular)
bwriasai (pluperfect singular third-person)
bwriasem (first-person pluperfect plural)
bwriasech (pluperfect plural second-person)
bwriasent (pluperfect plural third-person)
bwriasid (impersonal pluperfect)
bwriesid (impersonal pluperfect)
bwriwyf (first-person present singular subjunctive)
bwriech (present second-person singular subjunctive)
bwrio (present singular subjunctive third-person)
bwriom (first-person plural present subjunctive)
bwrioch (plural present second-person subjunctive)
bwriont (plural present subjunctive third-person)
bwrier (impersonal present subjunctive)
bwra (imperative second-person singular)
bwria (imperative second-person singular)
bwried (imperative singular third-person)
bwriwn (first-person imperative plural)
bwriwch (imperative plural second-person)
bwrient (imperative plural third-person)
bwrier (imperative impersonal)
bwrw (noun-from-verb)
bwriedig (participle)
bwria i (first-person future singular)
bwriaf i (first-person future singular)
bwri di (future second-person singular)
bwrith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
bwriff e (future singular third-person)
bwriwn ni (first-person future plural)
bwriwch chi (future plural second-person)
bwrian nhw (future plural third-person)
bwriwn i (conditional first-person singular)
bwriswn i (conditional first-person singular)
bwriet ti (conditional second-person singular)
bwriset ti (conditional second-person singular)
bwriai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
bwrisai fo (conditional singular third-person)
bwrien ni (conditional first-person plural)
bwrisen ni (conditional first-person plural)
bwriech chi (conditional plural second-person)
bwrisech chi (conditional plural second-person)
bwrien nhw (conditional plural third-person)
bwrisen nhw (conditional plural third-person)
bwriais i (first-person preterite singular)
bwries i (first-person preterite singular)
bwriaist ti (preterite second-person singular)
bwriest ti (preterite second-person singular)
bwriodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
bwrion ni (first-person plural preterite)
bwrioch chi (plural preterite second-person)
bwrion nhw (plural preterite third-person)
bwria (imperative second-person singular)
bwriwch (imperative plural second-person)
bwrw
fwrw (soft)
mwrw

From Middle Welsh bwrw, from Proto-Brythonic *burɣid, from Proto-Celtic *borgīti (compare Old Irish ·díbairg (“throws”)), from Proto-Indo-European *bʰorǵʰ-éye-ti, an "eye"-causative form of *bʰerǵʰ- (“to rise up, elevate”).

Mae hi'n bwrw glaw


anther

antherau (plural)
antheri (plural)
anther
hanther (prothesis-h)


-us

From Middle Welsh -us, from Proto-Brythonic *-ʉs, from Latin -ōsus. Cognate with Cornish -us, Breton -us and English -ous.

chemical nomenclature
chemical nomenclature#English

chemical compound
chemical compound#English

chemical element
chemical element#English

oxidation number
oxidation number#English

(chemistry) -ous, Used in chemical nomenclature to name chemical compounds in which a specified chemical element has a lower oxidation number than in the equivalent compound whose name ends in the suffix -ig. For example asid nitrus (“nitrous acid, HNO₂”) has fewer oxygen atoms per molecule than asid nitrig (“nitric acid, HNO₃”).


-ad

Borrowed from English -ate, altered in the same manner as basged (“basket”).

(chemistry) -ate, suffix denoting one of a group of related compounds - nitrad (“nitrate”), sylffad (“sulfate”).


bas

Borrowed from Latin basis (“foundation, base”) and from English base.


Ganymede

Borrowed from English Ganymede, from French Ganymède, from Latin Ganymēdēs, from Ancient Greek Γανυμήδης (Ganumḗdēs).

(astronomy) Ganymede (a moon of Jupiter)


Tethys

Borrowed from English Tethys, from Ancient Greek Τηθύς (Tēthús).


nitro-

(organic chemistry) nitro- (containing nitrogen)


Io

Borrowed from English Io, from Latin Iō, from Ancient Greek Ἰώ (Iṓ).


Rhea

Borrowed from English Rhea, from Ancient Greek Ῥέα (Rhéa).


Titan

Borrowed from English Titan, from Ancient Greek Τιτάν (Titán).


breg

Perhaps borrowed either from Middle English breck (“breach; failing”) or from Old Irish bréc (“lie, deception”).


bromo-

(organic chemistry) bromo- (containing bromine)


-ig

From Proto-Celtic *-ikos. Cognate with Cornish -ik, Breton -ig, Proto-Germanic *-igaz, Ancient Greek -ικός (-ikós), Latin -icus.

(chemistry) -ic, Used in chemical nomenclature to name chemical compounds in which a specified chemical element has a higher oxidation number than in the equivalent compound whose name ends in the suffix -us. For example asid nitrig (“nitric acid, HNO₃”) has more oxygen atoms per molecule than asid nitrus (“nitrous acid, HNO₂”).


Titania

Titania
Ditania (soft)
Nhitania
Thitania


nitr-

(organic chemistry) alternative form of nitro- (“containing nitrogen”), used before a vowel


-ol

(organic chemistry) -ol (suffix denoting an alcohol or phenol)


brom-

(organic chemistry) alternative form of bromo- (“containing bromine”), used before a vowel


cen

cennau (plural)
cen
gen (soft)
nghen
chen

From Proto-Celtic *kennos (“skin”) (compare Cornish kenn (“film, skin (on liquid); peel”), Breton kenn (“scurf, dandruff”), Old Irish cenn (“covering”)), from Proto-Indo-European *sken- (“to split off”) (compare German schinden (“to strip, peel; skin”)); further to Cornish skans (“fish scales”), Breton skant (“fish scales”), Irish scain (“to tear, burst”).

cog

(chemistry) scale, scurf, fur (in pipe, boiler, furnace, kettle)


cranc

cranciau (plural)
crancod (plural)
cranc
granc (soft)
nghranc
chranc


Phobos

Borrowed from English Phobos, from Ancient Greek Φόβος (Phóbos).


Deimos

Borrowed from English Deimos, from Ancient Greek Δεῖμος (Deîmos).


Callisto

Borrowed from English Callisto from Latin Callistō, from Ancient Greek Καλλιστώ (Kallistṓ).

(astronomy) Callisto (a moon of Jupiter)


Umbriel

Umbriel
Humbriel (prothesis-h)
Wmbriel (alternative)


cloro-

From Ancient Greek χλωρός (khlōrós, “pale green”).

uder

(organic chemistry) chloro- (chlorine, green)


dolen

dolennau (plural)
dolenni (plural)
dolen
ddolen (soft)
nolen

From dôl (“dale, valley; loop, ring”) + -en.


bron

From Middle Welsh bronn, from Proto-Brythonic *bronn, from Proto-Celtic *brusū (“belly”).

Cariad mam sy dan fy mron

Mae bronnau ardderchog gyda hi. (South)

1979, Heini Gruffudd, Look Up The Welsh: A Welsh Phrase Book, Y Lolfa Press


Gwener

From Proto-Brythonic *gwener, from Latin Venus. Compare Breton Gwener, Cornish Gwener.


Dione

Borrowed from English Dione, from Latin Diōnē (“of Jupiter”), from Ancient Greek Διώνη (Diṓnē, “of Zeus”).


alcali

alcalïau (plural)
alcalïon (plural)
alcali
halcali (prothesis-h)

Borrowed from English alkali, from French alcali, ultimately from Arabic اَلْقِلْي (al-qily).


blodyn

blodau (plural)
blodyn
flodyn (soft)
mlodyn
blodeuyn (alternative)

From old plural blawd (“flowers”) + -yn, from Middle Welsh blawt, from Proto-Celtic *blātus (compare Cornish bleujen, Breton bleuñv, Irish bláth), from Proto-Indo-European *bʰleh₃- (“blossom, flower”).


sêr

cy-noun

sêr f (collective, singulative seren, not mutable)

From Proto-Brythonic *ster, from Proto-Celtic *sterā, from Proto-Indo-European *h₂stḗr. Cognate with Cornish ster, Breton ster.

sêr tywydd

barometer earthstars, Astraeus hygrometricus

sêr y Pyreneau

Pyrenean squills, Scilla Pyrenean squill


antimoni

Borrowed from English antimony, from Medieval Latin antimonium, from Arabic إِثْمِد (ʔiṯmid), from Egyptian sdm, msdmt.


asid

asidau (plural)
asid
hasid (prothesis-h)


gwaith

gwaith m (plural gweithiau or gweithoedd or gweithydd or gweithion)

gweithiau (plural)
gweithoedd (plural)
gweithydd (plural)
gweithion (plural)

Doublets; from Middle Welsh gweith, from Proto-Brythonic *gweiθ, from Proto-Celtic *wextā (“time, course, turn”) (compare Cornish gweyth, Breton gwezh, Old Irish fecht (“journey; time, occasion”), Irish feacht (“journey; time, occasion”)), feminine past participle of Proto-Indo-European *weǵʰ- (“to carry, drive”).

der

Pan fo grym 1 newton yn symud pellter o 1 metr, cynhyrchir 1 joule o waith.

When 1 newton of force moves [an object] a distance of 1 metre, 1 joule of work is generated.


hâl

cy-noun

hâl m (plural halau or halion, not mutable)

From Proto-Brythonic *hal, from Proto-Celtic *sālos (“saltwater”), from Proto-Indo-European *séh₂ls (“salt”).


Mimas

Borrowed from English Mimas, from Ancient Greek Μίμᾱς (Mímās).


bromid

Borrowed from English bromide, analysable as brom- (“brom(o)-”) + -id (“ide”).


bensen

(organic chemistry) benzene (aromatic compound C₆H₆)


uchafu

cy-verb

uchafu (first-person singular present uchafaf)

uchafaf (first-person present singular)
uchafaf (first-person future indicative present singular)
uchefi (future indicative present second-person singular)
uchafa (future indicative present singular third-person)
uchafwn (first-person future indicative plural present)
uchefwch (future indicative plural present second-person)
uchafwch (future indicative plural present second-person)
uchafant (future indicative plural present third-person)
uchefir (future impersonal indicative present)
uchafwn (conditional first-person singular)
uchafwn (first-person imperfect indicative singular subjunctive)
uchafit (conditional second-person singular)
uchafit (imperfect indicative second-person singular subjunctive)
uchafai (conditional singular third-person)
uchafai (imperfect indicative singular subjunctive third-person)
uchafem (conditional first-person plural)
uchafem (first-person imperfect indicative plural subjunctive)
uchafech (conditional plural second-person)
uchafech (imperfect indicative plural second-person subjunctive)
uchafent (conditional plural third-person)
uchafent (imperfect indicative plural subjunctive third-person)
uchefid (conditional impersonal)
uchefid (imperfect impersonal indicative subjunctive)
uchefais (first-person preterite singular)
uchefaist (preterite second-person singular)
uchafodd (preterite singular third-person)
uchafasom (first-person plural preterite)
uchafasoch (plural preterite second-person)
uchafasant (plural preterite third-person)
uchafwyd (impersonal preterite)
uchafaswn (first-person pluperfect singular)
uchafasit (pluperfect second-person singular)
uchafasai (pluperfect singular third-person)
uchafasem (first-person pluperfect plural)
uchafasech (pluperfect plural second-person)
uchafasent (pluperfect plural third-person)
uchafasid (impersonal pluperfect)
uchafesid (impersonal pluperfect)
uchafwyf (first-person present singular subjunctive)
uchefych (present second-person singular subjunctive)
uchafo (present singular subjunctive third-person)
uchafom (first-person plural present subjunctive)
uchafoch (plural present second-person subjunctive)
uchafont (plural present subjunctive third-person)
uchafer (impersonal present subjunctive)
uchafa (imperative second-person singular)
uchafed (imperative singular third-person)
uchafwn (first-person imperative plural)
uchefwch (imperative plural second-person)
uchafwch (imperative plural second-person)
uchafent (imperative plural third-person)
uchafer (imperative impersonal)
uchafu (noun-from-verb singular)
uchafedig (participle singular)
uchafadwy (participle singular)
uchafa i (first-person future singular)
uchafaf i (first-person future singular)
uchafi di (future second-person singular)
uchafith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
uchafiff e (future singular third-person)
uchafwn ni (first-person future plural)
uchafwch chi (future plural second-person)
uchafan nhw (future plural third-person)
uchafwn i (conditional first-person singular)
uchafswn i (conditional first-person singular)
uchafet ti (conditional second-person singular)
uchafset ti (conditional second-person singular)
uchafai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
uchafsai fo (conditional singular third-person)
uchafen ni (conditional first-person plural)
uchafsen ni (conditional first-person plural)
uchafech chi (conditional plural second-person)
uchafsech chi (conditional plural second-person)
uchafen nhw (conditional plural third-person)
uchafsen nhw (conditional plural third-person)
uchafais i (first-person preterite singular)
uchafes i (first-person preterite singular)
uchafaist ti (preterite second-person singular)
uchafest ti (preterite second-person singular)
uchafodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
uchafon ni (first-person plural preterite)
uchafoch chi (plural preterite second-person)
uchafon nhw (plural preterite third-person)
uchafa (imperative second-person singular)
uchafwch (imperative plural second-person)
uchafu
huchafu (prothesis-h)
uwchafu (alternative)


folt

cy-noun

folt m (plural foltau or foltiau, not mutable)

Borrowed from English volt, from the name of the Italian physicist Alessandro Volta.


aloi

aloion (plural)
aloiau (plural)
aloi
haloi (prothesis-h)


bual

bual m (plural buail or bualod or bualau)

buail (plural)
bualod (plural)
bualau (plural)
bual
fual (soft)
mual

From Middle Welsh bual, from Proto-Brythonic *bʉβal, from Latin būbalus, from Ancient Greek βούβαλος (boúbalos). Compare Breton bual.


eryr

eryrod (plural)
eryr
heryr (prothesis-h)

From Middle Welsh eryr, from Proto-Celtic *eriros (“eagle”) (compare Breton erer, Cornish er, Old Irish irar), from Proto-Indo-European *h₃érō (“large bird”).


Ewropa

Borrowed from English Europa, from Latin Eurōpa, from Ancient Greek Εὐρώπα (Eurṓpa) a Doric variant of Εὐρώπη (Eurṓpē). Doublet of Ewrop.

(astronomy) Europa (52 Europa, a main belt asteroid; not to be confused with the Jovian moon)


Iau

Iau
Hiau (prothesis-h)
Iou (alternative)

From Middle Welsh Ieu, from Proto-Brythonic *Yow, from Latin Iovem (accusative of Iuppiter), from Proto-Indo-European *dyew- (“sky”). Compare Breton Yaou, Cornish Yow.

accusative of <i class="Latn mention" lang="la">Iuppiter</i>


Sadwrn

From Middle Welsh Sadwrn, from Proto-Brythonic *Sadurn, borrowed from Vulgar Latin Săturnus, from Latin Sāturnus. Compare Cornish and Breton Sadorn.


sylffwrig

cy-adj

sylffwrig (feminine singular sylffwrig, plural sylffwrig, not comparable, not mutable)

sylffwrig (feminine singular)
sylffwrig (plural)


gamet

gametau (plural)
gamet
amet (soft)
ngamet

English gamete, from Ancient Greek γαμέτης (gamétēs, “spouse”)


nwy

From a conjectured element *ny- (“spreading”) + gwy (“fluid”).


cylch

cy-noun

cylch m (plural cylchoedd or cylchau or cylchon or cylchion)

cylchoedd (plural)
cylchau (plural)
cylchon (plural)
cylchion (plural)
cylch
gylch (soft)
nghylch
chylch

From Middle Welsh kylch, from Proto-Brythonic *kɨlx. Cognate with Breton kelc'h and Welsh kylgh.


trwyn

trwynau (plural)
trwyn
drwyn (soft)
nhrwyn
thrwyn

From Proto-Celtic *trognī- (“nose”), with further origin uncertain; perhaps related to ffroen (“nostril”). Cognate with Cornish tron, Breton stroen, and also with French trogne via Gaulish trugna (“nose, snout”).


gyrrwr

gyrwyr (plural)
gyrrwr
yrrwr (soft)
ngyrrwr


arwydd

arwyddion (plural)
arwydd
harwydd (prothesis-h)

From Middle Welsh arwyð, from Proto-Celtic *ɸareweidyom; compare Old Irish airde.

arwydd y Llew

(astrology, astronomy) sign (of the zodiac)


ffon gof

ffon gof f (plural ffyn cof, not mutable)

/ˌfɔŋ ˈɡoːv/


trefnu

cy-verb

trefnu (first-person singular present trefnaf)

trefnaf (first-person present singular)
trefnaf (first-person future indicative present singular)
trefni (future indicative present second-person singular)
trefna (future indicative present singular third-person)
trefnwn (first-person future indicative plural present)
trefnwch (future indicative plural present second-person)
trefnant (future indicative plural present third-person)
trefnir (future impersonal indicative present)
trefnwn (conditional first-person singular)
trefnwn (first-person imperfect indicative singular subjunctive)
trefnit (conditional second-person singular)
trefnit (imperfect indicative second-person singular subjunctive)
trefnai (conditional singular third-person)
trefnai (imperfect indicative singular subjunctive third-person)
trefnem (conditional first-person plural)
trefnem (first-person imperfect indicative plural subjunctive)
trefnech (conditional plural second-person)
trefnech (imperfect indicative plural second-person subjunctive)
trefnent (conditional plural third-person)
trefnent (imperfect indicative plural subjunctive third-person)
trefnid (conditional impersonal)
trefnid (imperfect impersonal indicative subjunctive)
trefnais (first-person preterite singular)
trefnaist (preterite second-person singular)
trefnodd (preterite singular third-person)
trefnasom (first-person plural preterite)
trefnasoch (plural preterite second-person)
trefnasant (plural preterite third-person)
trefnwyd (impersonal preterite)
trefnaswn (first-person pluperfect singular)
trefnasit (pluperfect second-person singular)
trefnasai (pluperfect singular third-person)
trefnasem (first-person pluperfect plural)
trefnasech (pluperfect plural second-person)
trefnasent (pluperfect plural third-person)
trefnasid (impersonal pluperfect)
trefnesid (impersonal pluperfect)
trefnwyf (first-person present singular subjunctive)
trefnych (present second-person singular subjunctive)
trefno (present singular subjunctive third-person)
trefnom (first-person plural present subjunctive)
trefnoch (plural present second-person subjunctive)
trefnont (plural present subjunctive third-person)
trefner (impersonal present subjunctive)
trefna (imperative second-person singular)
trefned (imperative singular third-person)
trefnwn (first-person imperative plural)
trefnwch (imperative plural second-person)
trefnent (imperative plural third-person)
trefner (imperative impersonal)
trefnu (noun-from-verb singular)
trefnedig (participle singular)
trefnadwy (participle singular)
trefna i (first-person future singular)
trefnaf i (first-person future singular)
trefni di (future second-person singular)
trefnith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
trefniff e (future singular third-person)
trefnwn ni (first-person future plural)
trefnwch chi (future plural second-person)
trefnan nhw (future plural third-person)
trefnwn i (conditional first-person singular)
trefnswn i (conditional first-person singular)
trefnet ti (conditional second-person singular)
trefnset ti (conditional second-person singular)
trefnai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
trefnsai fo (conditional singular third-person)
trefnen ni (conditional first-person plural)
trefnsen ni (conditional first-person plural)
trefnech chi (conditional plural second-person)
trefnsech chi (conditional plural second-person)
trefnen nhw (conditional plural third-person)
trefnsen nhw (conditional plural third-person)
trefnais i (first-person preterite singular)
trefnes i (first-person preterite singular)
trefnaist ti (preterite second-person singular)
trefnest ti (preterite second-person singular)
trefnodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
trefnon ni (first-person plural preterite)
trefnoch chi (plural preterite second-person)
trefnon nhw (plural preterite third-person)
trefna (imperative second-person singular)
trefnwch (imperative plural second-person)
trefnu
drefnu (soft)
nhrefnu
threfnu


methan

Borrowed from English methane. By surface analysis, meth- + -an.


nymff

cy-noun

nymff f (plural nymffod or nimffau or nimffiaid, not mutable)

nymffod (plural)
nimffau (plural)
nimffiaid (plural)

Borrowed from Latin nympha (“nymph, bride”), from Ancient Greek νύμφη (númphē, “bride”).


oddf

oddfau (plural)
oddf
hoddf (prothesis-h)

From Proto-Celtic *odbos (“knot, bulge”); compare Old Irish odb.


galaeth

galaethau (plural)
galaeth
alaeth (soft)
ngalaeth

From Latin galaxiās, influenced in form by llaeth (“milk”) (compare Milky Way).


chwilio

cy-verb

chwilio (first-person singular present chwiliaf, not mutable)

chwiliaf (first-person present singular)
chwiliaf (first-person future indicative present singular)
chwili (future indicative present second-person singular)
chwilia (future indicative present singular third-person)
chwiliwn (first-person future indicative plural present)
chwiliwch (future indicative plural present second-person)
chwiliant (future indicative plural present third-person)
chwilir (future impersonal indicative present)
chwiliwn (conditional first-person singular)
chwiliwn (first-person imperfect indicative singular)
chwilit (conditional second-person singular)
chwilit (imperfect indicative second-person singular)
chwiliai (conditional singular third-person)
chwiliai (imperfect indicative singular third-person)
chwiliem (conditional first-person plural)
chwiliem (first-person imperfect indicative plural)
chwiliech (conditional plural second-person)
chwiliech (imperfect indicative plural second-person)
chwilient (conditional plural third-person)
chwilient (imperfect indicative plural third-person)
chwilid (conditional impersonal)
chwilid (imperfect impersonal indicative)
chwiliais (first-person preterite singular)
chwiliaist (preterite second-person singular)
chwiliodd (preterite singular third-person)
chwiliasom (first-person plural preterite)
chwiliasoch (plural preterite second-person)
chwiliasant (plural preterite third-person)
chwiliwyd (impersonal preterite)
chwiliaswn (first-person pluperfect singular)
chwiliasit (pluperfect second-person singular)
chwiliasai (pluperfect singular third-person)
chwiliasem (first-person pluperfect plural)
chwiliasech (pluperfect plural second-person)
chwiliasent (pluperfect plural third-person)
chwiliasid (impersonal pluperfect)
chwiliesid (impersonal pluperfect)
chwiliwyf (first-person present singular subjunctive)
chwiliech (present second-person singular subjunctive)
chwilio (present singular subjunctive third-person)
chwiliom (first-person plural present subjunctive)
chwilioch (plural present second-person subjunctive)
chwiliont (plural present subjunctive third-person)
chwilier (impersonal present subjunctive)
chwilia (imperative second-person singular)
chwilied (imperative singular third-person)
chwiliwn (first-person imperative plural)
chwiliwch (imperative plural second-person)
chwilient (imperative plural third-person)
chwilier (imperative impersonal)
chwilio (noun-from-verb)
chwiliedig (participle)
chwiliadwy (participle)
chwilia i (first-person future singular)
chwiliaf i (first-person future singular)
chwili di (future second-person singular)
chwilith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
chwiliff e (future singular third-person)
chwiliwn ni (first-person future plural)
chwiliwch chi (future plural second-person)
chwilian nhw (future plural third-person)
chwiliwn i (conditional first-person singular)
chwiliswn i (conditional first-person singular)
chwiliet ti (conditional second-person singular)
chwiliset ti (conditional second-person singular)
chwiliai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
chwilisai fo (conditional singular third-person)
chwilien ni (conditional first-person plural)
chwilisen ni (conditional first-person plural)
chwiliech chi (conditional plural second-person)
chwilisech chi (conditional plural second-person)
chwilien nhw (conditional plural third-person)
chwilisen nhw (conditional plural third-person)
chwiliais i (first-person preterite singular)
chwilies i (first-person preterite singular)
chwiliaist ti (preterite second-person singular)
chwiliest ti (preterite second-person singular)
chwiliodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
chwilion ni (first-person plural preterite)
chwilioch chi (plural preterite second-person)
chwilion nhw (plural preterite third-person)
chwilia (imperative second-person singular)
chwiliwch (imperative plural second-person)

chwŷl (“turn, revolution”, with i-mutation) + -io

chwilio am nyth cwhwrw

to go on a wild goose chase; to search for a nyth cwhwrw


microb

Borrowed from English microbe, from French microbe.


gwreiddyn

gwreiddiau (plural)
gwreiddyn
wreiddyn (soft)
ngwreiddyn


elfen

elfennau (plural)
elfen
helfen (prothesis-h)

From Proto-Brythonic *elβ̃en (whence also Cornish elven, Breton elfenn), borrowed from Latin elementum.


clipfwrdd

clipfyrddau (plural)
clipfwrdd
glipfwrdd (soft)
nghlipfwrdd
chlipfwrdd

From clip + bwrdd, a calque of English clipboard.


clais

cleisau (plural)
cleisiau (plural)
clais
glais (soft)
nghlais
chlais

(botany) One of several flowering plants, including:

devil’s bit scabious (Succisa pratensis)


ffon

From Middle Welsh ffonn, from Proto-Brythonic *fonn, from Proto-Celtic *sɸondos (compare Breton houn, Irish sonn (“cudgel, beam”), from Proto-Indo-European *sph₂en- (compare Latin sponda (“bedstead”), English spoon, Ancient Greek σφήν (sphḗn, “wedge”)).


metaboblogaeth

cy-noun

metaboblogaeth f (plural metaboblogaethau)

metaboblogaethau (plural)
metaboblogaeth
fetaboblogaeth (soft)


microgyfrifiadur

microgyfrifiadur m (plural microgyfrifiaduron)

microgyfrifiaduron (plural)
microgyfrifiadur
ficrogyfrifiadur (soft)


minigyfrifiadur

minigyfrifiadur m (plural minigyfrifiaduron)

minigyfrifiaduron (plural)
minigyfrifiadur
finigyfrifiadur (soft)


llofiadur

llofiaduron (plural)
llofiadur
lofiadur (soft)


eiliadur

eiliaduron (plural)
eiliadur
heiliadur (prothesis-h)


cylched

cylchedau (plural)
cylched
gylched (soft)
nghylched
chylched

From cylch (“circle, ring; compass, scope, range; circumference”) + -ed.


adain

cy-noun

adain f (plural adenydd or adanedd or adeinydd or adeinedd or adeiniau or edenydd or edyn)

adenydd (plural)
adanedd (plural)
adeinydd (plural)
adeinedd (plural)
adeiniau (plural)
edenydd (plural)
edyn (plural)
adain
hadain (prothesis-h)
aden (alternative)

From Proto-Celtic *ɸatanī (compare Old Irish ette (“feather”)), from *ɸetnos (“bird”). More at adar, edn.


halid

Borrowed from English halide, serendipitously analysable as hâl (“salt”) + -id.


cefn

cefn m (plural cefnau or cefnoedd or cefnydd)

cefnau (plural)
cefnoedd (plural)
cefnydd (plural)
cefn
gefn (soft)
nghefn
chefn

From Middle Welsh keuen. Related to Breton kein (“back”), Cornish keyn (“back”), Gaulish Cebenna (“ridge, height”) (whence French Cévennes).

ar gefn

in addition to, as a consequence of, with regard to; at the expense of; on top, upon, up to

cefn lloer

full moon; crescent of the moon, half moon

cefnog

backed, having a back; strong, stout brave

yng nghefn

behind one's back, underhand; following, pursuing

(geology) vertical furrow, fissure or fault in a rock


gwyach

gwyachod (plural)
gwyach
wyach (soft)
ngwyach

From Middle Welsh gwyach, from Proto-Celtic *wessakos. Cognate with Irish fiach (“raven”).


malwod

malwod f (collective, singulative malwoden or malwen)

malwoden (singulative)
malwen (singulative)
malwod
falwod (soft)

From Old Welsh meluet, from Proto-Brythonic *melw- (“soft”), from Proto-Celtic *meldo- (“pleasant, mild”), *mlido (“soft”), from Proto-Indo-European *ml̥dus (“soft, weak”).
Compare Breton melc'hwed, Cornish melhwes, (compare Breton melw (“snot”)). Also see Gaulish *multon- (“sheep”), which could be related.

cysgu yn llety’r falwoden

to sleep by an outside wall; to sleep in the snail's lodgings

(weaponry) slugs (pieces of metal fired from a gun)

(transferred sense) segments (of orange etc.)


nydd

(botany) woodbine, honeysuckle (Lonicera)


cysylltiad

cysylltiadau (plural)
cysylltiad
gysylltiad (soft)
nghysylltiad
chysylltiad

From cysylltu (“to join, connect”) + -iad.

(astrology, astronomy, grammar) conjunction


urdd

urddau (plural)
urdd
hurdd (prothesis-h)

From Middle Welsh urð, from Proto-Brythonic *ʉrð, from Latin ōrdō.


data-bas

data-basau (plural)
data-bas
ddata-bas (soft)
nata-bas

From data + bas. Cognate with English database.


alwminiwm

alwminiwm
halwminiwm (prothesis-h)
aliwminiwm (alternative)


gwennol

gwenoliaid (plural)
gwennol
wennol (soft)
ngwennol

From Middle Welsh gwennawl, from Proto-Brythonic *gwennọl (compare Breton gwennel), from Proto-Celtic *wesnālā (whence Old Irish fannall). For sense "frog (in a horse's foot)", compare Ancient Greek χελιδών (khelidṓn).

(zoology, horse anatomy) frog (organ on the bottom of a horse’s hoof)


cwlwm

clymau (plural)
cylymau (plural)
cwlwm
gwlwm (soft)
nghwlwm
chwlwm
clwm (alternative)
cwlm (alternative)

Cognate with Cornish kolm, Breton koulm, skoulm.


llaid

From Proto-Brythonic *llėd, from Proto-Celtic *latyos (“moist”), from *latis (“swamp, mire”), see also Old Norse leðja (“mud”), Albanian lag (“to moisten”). Cognate with Cornish leys.

(veterinary medicine) mud fever, foot rot


parth

parthau (plural)
parth
barth (soft)
mharth
pharth

From Proto-Brythonic *parθ, from Latin pars.


tylwyth

tylwythau (plural)
tylwyth
dylwyth (soft)
nhylwyth
thylwyth

From tŷ (“house”) + llwyth (“people”). Akin to teulu and present in Tylwyth Teg (“fair folk (elves, fairies)”).


cyswllt

cy-noun

cyswllt m (plural cysylltau or cysylltiau)

From Middle Welsh kysswllt, from Proto-Brythonic *kusulld, from Vulgar Latin *cōnsoldus, cōnsolidus; cf. Latin cōnsolidō.

(astronomy, astrology, grammar) conjunction


llestr

From Proto-Brythonic *llestr, from Proto-Celtic *lestrom (“pot”), possibly from Proto-Indo-European *les- (“to gather”) + *-trom. Compare Irish leastar (“cup, vessel, tub”), Breton lestr (“vessel, vase, ship”).

(biology) tube or duct in the body of an organism

vessel, container
tube or duct in the body of an organism


cyfnod

cyfnodau (plural)
cyfnod
gyfnod (soft)
nghyfnod
chyfnod


cadw

cy-verb

cadw (first-person singular present cadwaf)

cadwaf (first-person present singular)
cadwaf (first-person future indicative present singular)
cedwi (future indicative present second-person singular)
ceidw (future indicative present singular third-person)
cadwn (first-person future indicative plural present)
cedwch (future indicative plural present second-person)
cadwant (future indicative plural present third-person)
cedwir (future impersonal indicative present)
cadwn (conditional first-person singular)
cadwn (first-person imperfect indicative singular)
cadwit (conditional second-person singular)
cadwit (imperfect indicative second-person singular)
cadwai (conditional singular third-person)
cadwai (imperfect indicative singular third-person)
cadwem (conditional first-person plural)
cadwem (first-person imperfect indicative plural)
cadwech (conditional plural second-person)
cadwech (imperfect indicative plural second-person)
cadwent (conditional plural third-person)
cadwent (imperfect indicative plural third-person)
cedwid (conditional impersonal)
cedwid (imperfect impersonal indicative)
cedwais (first-person preterite singular)
cedwaist (preterite second-person singular)
cadwodd (preterite singular third-person)
cadwasom (first-person plural preterite)
cadwasoch (plural preterite second-person)
cadwasant (plural preterite third-person)
cadwyd (impersonal preterite)
cadwaswn (first-person pluperfect singular)
cadwasit (pluperfect second-person singular)
cadwasai (pluperfect singular third-person)
cadwasem (first-person pluperfect plural)
cadwasech (pluperfect plural second-person)
cadwasent (pluperfect plural third-person)
cadwasid (impersonal pluperfect)
cadwesid (impersonal pluperfect)
cadwyf (first-person present singular subjunctive)
cedwych (present second-person singular subjunctive)
cadwo (present singular subjunctive third-person)
cadwom (first-person plural present subjunctive)
cadwoch (plural present second-person subjunctive)
cadwont (plural present subjunctive third-person)
cadwer (impersonal present subjunctive)
cadw (imperative second-person singular)
cadwa (imperative second-person singular)
cadwed (imperative singular third-person)
cadwn (first-person imperative plural)
cedwch (imperative plural second-person)
cadwent (imperative plural third-person)
cadwer (imperative impersonal)
cadw (noun-from-verb)
cadwedig (participle)
cadwadwy (participle)
cadwa i (first-person future singular)
cadwaf i (first-person future singular)
cadwi di (future second-person singular)
cadwith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
cadwiff e (future singular third-person)
cadwn ni (first-person future plural)
cadwch chi (future plural second-person)
cadwan nhw (future plural third-person)
cadwn i (conditional first-person singular)
cadwswn i (conditional first-person singular)
cadwet ti (conditional second-person singular)
cadwset ti (conditional second-person singular)
cadwai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
cadwsai fo (conditional singular third-person)
cadwen ni (conditional first-person plural)
cadwsen ni (conditional first-person plural)
cadwech chi (conditional plural second-person)
cadwsech chi (conditional plural second-person)
cadwen nhw (conditional plural third-person)
cadwsen nhw (conditional plural third-person)
cadwais i (first-person preterite singular)
cadwes i (first-person preterite singular)
cadwaist ti (preterite second-person singular)
cadwest ti (preterite second-person singular)
cadwodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
cadwon ni (first-person plural preterite)
cadwoch chi (plural preterite second-person)
cadwon nhw (plural preterite third-person)
cadwa (imperative second-person singular)
cadwch (imperative plural second-person)
cadw
gadw (soft)
nghadw
chadw

From Proto-Celtic *kat-wo-, from Proto-Indo-European *kadʰ- (“to protect”). Cognate with English hat, English heed, Latin cassis.

cadw draenog yn boced un

to be tightfisted, mean with money; to keep a hedgehog in one's pocket


Awstralia

(geology) Australia (a continent consisting of the land on the Australian tectonic plate, i.e. Australia, New Guinea and intervening islands)


cilfach

cilfachau (plural)
cilfach
gilfach (soft)
nghilfach
chilfach

(geography) creek, inlet of the sea, bay


ymasiad

ymasiadau (plural)
ymasiad
hymasiad (prothesis-h)


prif

prifiau (plural)
prifion (plural)
prif
brif (soft)
mhrif
phrif

From Middle Welsh prif, from Proto-Brythonic *priβ̃, borrowed from Latin prīmus.


porth

From Middle Welsh porth, from Old Welsh porth, from Proto-Brythonic *porθ, borrowed from Latin porta (“gate, passage”).


teyrnas

cy-noun

teyrnas f (plural teyrnasoedd or teyrnasau)

teyrnasoedd (plural)
teyrnasau (plural)
teyrnas
deyrnas (soft)
nheyrnas
theyrnas


cromad

Borrowed from English chromate. By surface analysis, crom- (“chrom-”) + -ad (“-ate”).


mantell

From Middle Welsh mantell, from Proto-Brythonic *mantell (compare Old Cornish mantel, Middle Breton and Breton mantel, mantell), from Latin mantellum (“cloak”), diminutive of mantum, of Gaulish origin.


tagell

cy-noun

tagell f (plural tagellau or tagelli or tegyll)

tagellau (plural)
tagelli (plural)
tegyll (plural)
tagell
dagell (soft)
nhagell
thagell

From tag (“choking, strangulation”) + -ell.

(mycology) gill, lamella (on the cap of a mushroom)


cesail

ceseiliau (plural)
cesail
gesail (soft)
nghesail
chesail


pwd

(veterinary medicine, with definite article) various diseases of livestock including:


parddu

(phytopathology) smut (fungi in the class Ustilaginomycetes and the diseases that they cause in plants)


gowt

(agriculture, phytopathology) clubroot, a common disease of cabbages, radishes and turnips


gwregys

gwregysau (plural)
gwregys
wregys (soft)
ngwregys

With metathesis from Old Welsh guecrissou, from Proto-Brythonic *gwö-krissus (“belt”, literally “below-shirt”) (compare Cornish grugys, Breton gouriz), derived from Proto-Celtic *krissus, whence Welsh crys (“shirt”).


derbyniad

derbyniadau (plural)
derbyniad
dderbyniad (soft)
nerbyniad


peiriant chwilio

cy-noun

peiriant chwilio m (plural peiriannau chwilio)

peiriannau chwilio (plural)
peiriant chwilio
beiriant chwilio (soft)
mheiriant chwilio
pheiriant chwilio

From peiriant (“machine, engine”) + chwilio (“to search”).


mewngofnodi

cy-verb

mewngofnodi (first-person singular present mewngofnodaf)

mewngofnodaf (first-person present singular)
mewngofnodaf (first-person future indicative present singular)
mewngofnodi (future indicative present second-person singular)
mewngofnoda (future indicative present singular third-person)
mewngofnodwn (first-person future indicative plural present)
mewngofnodwch (future indicative plural present second-person)
mewngofnodant (future indicative plural present third-person)
mewngofnodir (future impersonal indicative present)
mewngofnodwn (conditional first-person singular)
mewngofnodwn (first-person imperfect indicative singular subjunctive)
mewngofnodit (conditional second-person singular)
mewngofnodit (imperfect indicative second-person singular subjunctive)
mewngofnodai (conditional singular third-person)
mewngofnodai (imperfect indicative singular subjunctive third-person)
mewngofnodem (conditional first-person plural)
mewngofnodem (first-person imperfect indicative plural subjunctive)
mewngofnodech (conditional plural second-person)
mewngofnodech (imperfect indicative plural second-person subjunctive)
mewngofnodent (conditional plural third-person)
mewngofnodent (imperfect indicative plural subjunctive third-person)
mewngofnodid (conditional impersonal)
mewngofnodid (imperfect impersonal indicative subjunctive)
mewngofnodais (first-person preterite singular)
mewngofnodaist (preterite second-person singular)
mewngofnododd (preterite singular third-person)
mewngofnodasom (first-person plural preterite)
mewngofnodasoch (plural preterite second-person)
mewngofnodasant (plural preterite third-person)
mewngofnodwyd (impersonal preterite)
mewngofnodaswn (first-person pluperfect singular)
mewngofnodasit (pluperfect second-person singular)
mewngofnodasai (pluperfect singular third-person)
mewngofnodasem (first-person pluperfect plural)
mewngofnodasech (pluperfect plural second-person)
mewngofnodasent (pluperfect plural third-person)
mewngofnodasid (impersonal pluperfect)
mewngofnodesid (impersonal pluperfect)
mewngofnodwyf (first-person present singular subjunctive)
mewngofnodych (present second-person singular subjunctive)
mewngofnodo (present singular subjunctive third-person)
mewngofnodom (first-person plural present subjunctive)
mewngofnodoch (plural present second-person subjunctive)
mewngofnodont (plural present subjunctive third-person)
mewngofnoder (impersonal present subjunctive)
mewngofnoda (imperative second-person singular)
mewngofnoded (imperative singular third-person)
mewngofnodwn (first-person imperative plural)
mewngofnodwch (imperative plural second-person)
mewngofnodent (imperative plural third-person)
mewngofnoder (imperative impersonal)
mewngofnodi (noun-from-verb singular)
mewngofnodedig (participle singular)
mewngofnodadwy (participle singular)
mewngofnoda i (first-person future singular)
mewngofnodaf i (first-person future singular)
mewngofnodi di (future second-person singular)
mewngofnodith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
mewngofnodiff e (future singular third-person)
mewngofnodwn ni (first-person future plural)
mewngofnodwch chi (future plural second-person)
mewngofnodan nhw (future plural third-person)
mewngofnodwn i (conditional first-person singular)
mewngofnodswn i (conditional first-person singular)
mewngofnodet ti (conditional second-person singular)
mewngofnodset ti (conditional second-person singular)
mewngofnodai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
mewngofnodsai fo (conditional singular third-person)
mewngofnoden ni (conditional first-person plural)
mewngofnodsen ni (conditional first-person plural)
mewngofnodech chi (conditional plural second-person)
mewngofnodsech chi (conditional plural second-person)
mewngofnoden nhw (conditional plural third-person)
mewngofnodsen nhw (conditional plural third-person)
mewngofnodais i (first-person preterite singular)
mewngofnodes i (first-person preterite singular)
mewngofnodaist ti (preterite second-person singular)
mewngofnodest ti (preterite second-person singular)
mewngofnododd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
mewngofnodon ni (first-person plural preterite)
mewngofnodoch chi (plural preterite second-person)
mewngofnodon nhw (plural preterite third-person)
mewngofnoda (imperative second-person singular)
mewngofnodwch (imperative plural second-person)
mewngofnodi
fewngofnodi (soft)

/ˌmɛu̯ŋɡɔvˈnɔdi/

/ˌmɛu̯ŋɡɔvˈnɔdi/

From mewn- (“in”) + cofnodi (“to record, to note”).

af

(intransitive, computing) to log in, to log on


allgofnodi

cy-verb

allgofnodi (first-person singular present allgofnodaf)

allgofnodaf (first-person present singular)
allgofnodaf (first-person future indicative present singular)
allgofnodi (future indicative present second-person singular)
allgofnoda (future indicative present singular third-person)
allgofnodwn (first-person future indicative plural present)
allgofnodwch (future indicative plural present second-person)
allgofnodant (future indicative plural present third-person)
allgofnodir (future impersonal indicative present)
allgofnodwn (conditional first-person singular)
allgofnodwn (first-person imperfect indicative singular subjunctive)
allgofnodit (conditional second-person singular)
allgofnodit (imperfect indicative second-person singular subjunctive)
allgofnodai (conditional singular third-person)
allgofnodai (imperfect indicative singular subjunctive third-person)
allgofnodem (conditional first-person plural)
allgofnodem (first-person imperfect indicative plural subjunctive)
allgofnodech (conditional plural second-person)
allgofnodech (imperfect indicative plural second-person subjunctive)
allgofnodent (conditional plural third-person)
allgofnodent (imperfect indicative plural subjunctive third-person)
allgofnodid (conditional impersonal)
allgofnodid (imperfect impersonal indicative subjunctive)
allgofnodais (first-person preterite singular)
allgofnodaist (preterite second-person singular)
allgofnododd (preterite singular third-person)
allgofnodasom (first-person plural preterite)
allgofnodasoch (plural preterite second-person)
allgofnodasant (plural preterite third-person)
allgofnodwyd (impersonal preterite)
allgofnodaswn (first-person pluperfect singular)
allgofnodasit (pluperfect second-person singular)
allgofnodasai (pluperfect singular third-person)
allgofnodasem (first-person pluperfect plural)
allgofnodasech (pluperfect plural second-person)
allgofnodasent (pluperfect plural third-person)
allgofnodasid (impersonal pluperfect)
allgofnodesid (impersonal pluperfect)
allgofnodwyf (first-person present singular subjunctive)
allgofnodych (present second-person singular subjunctive)
allgofnodo (present singular subjunctive third-person)
allgofnodom (first-person plural present subjunctive)
allgofnodoch (plural present second-person subjunctive)
allgofnodont (plural present subjunctive third-person)
allgofnoder (impersonal present subjunctive)
allgofnoda (imperative second-person singular)
allgofnoded (imperative singular third-person)
allgofnodwn (first-person imperative plural)
allgofnodwch (imperative plural second-person)
allgofnodent (imperative plural third-person)
allgofnoder (imperative impersonal)
allgofnodi (noun-from-verb singular)
allgofnodedig (participle singular)
allgofnodadwy (participle singular)
allgofnoda i (first-person future singular)
allgofnodaf i (first-person future singular)
allgofnodi di (future second-person singular)
allgofnodith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
allgofnodiff e (future singular third-person)
allgofnodwn ni (first-person future plural)
allgofnodwch chi (future plural second-person)
allgofnodan nhw (future plural third-person)
allgofnodwn i (conditional first-person singular)
allgofnodswn i (conditional first-person singular)
allgofnodet ti (conditional second-person singular)
allgofnodset ti (conditional second-person singular)
allgofnodai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
allgofnodsai fo (conditional singular third-person)
allgofnoden ni (conditional first-person plural)
allgofnodsen ni (conditional first-person plural)
allgofnodech chi (conditional plural second-person)
allgofnodsech chi (conditional plural second-person)
allgofnoden nhw (conditional plural third-person)
allgofnodsen nhw (conditional plural third-person)
allgofnodais i (first-person preterite singular)
allgofnodes i (first-person preterite singular)
allgofnodaist ti (preterite second-person singular)
allgofnodest ti (preterite second-person singular)
allgofnododd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
allgofnodon ni (first-person plural preterite)
allgofnodoch chi (plural preterite second-person)
allgofnodon nhw (plural preterite third-person)
allgofnoda (imperative second-person singular)
allgofnodwch (imperative plural second-person)
allgofnodi
hallgofnodi (prothesis-h)

From all- (“out-”) + cofnodi (“to record, to note”).


gradd

graddau (plural)
gradd
radd (soft)
ngradd

From Middle Welsh grað, from Proto-Brythonic *grað, from Latin gradus (“degree”). Doublet of gris.

o'r radd flaenaf

of the highest degree, of the best quality

(physics) degree (unit of measurement of temperature)

(geography) degree (unit of measurement of latitude and longitude)


cigydd

cigyddion (plural)
cigydd
gigydd (soft)
nghigydd
chigydd

Peter Hayman
w:Peter Hayman (ornithologist)

Gwasg Carreg Gwalch
w:Gwasg Carreg Gwalch

(ornithology) shrike (cf. English butcherbird)


plygu

cy-verb

plygu (first-person singular present plygaf)

plygaf (first-person present singular)
plygaf (first-person future indicative present singular)
plygi (future indicative present second-person singular)
plyg (future indicative present singular third-person)
plyga (future indicative present singular third-person)
plygwn (first-person future indicative plural present)
plygwch (future indicative plural present second-person)
plygant (future indicative plural present third-person)
plygir (future impersonal indicative present)
plygwn (conditional first-person singular)
plygwn (first-person imperfect indicative singular subjunctive)
plygit (conditional second-person singular)
plygit (imperfect indicative second-person singular subjunctive)
plygai (conditional singular third-person)
plygai (imperfect indicative singular subjunctive third-person)
plygem (conditional first-person plural)
plygem (first-person imperfect indicative plural subjunctive)
plygech (conditional plural second-person)
plygech (imperfect indicative plural second-person subjunctive)
plygent (conditional plural third-person)
plygent (imperfect indicative plural subjunctive third-person)
plygid (conditional impersonal)
plygid (imperfect impersonal indicative subjunctive)
plygais (first-person preterite singular)
plygaist (preterite second-person singular)
plygodd (preterite singular third-person)
plygasom (first-person plural preterite)
plygasoch (plural preterite second-person)
plygasant (plural preterite third-person)
plygwyd (impersonal preterite)
plygaswn (first-person pluperfect singular)
plygasit (pluperfect second-person singular)
plygasai (pluperfect singular third-person)
plygasem (first-person pluperfect plural)
plygasech (pluperfect plural second-person)
plygasent (pluperfect plural third-person)
plygasid (impersonal pluperfect)
plygesid (impersonal pluperfect)
plygwyf (first-person present singular subjunctive)
plygych (present second-person singular subjunctive)
plygo (present singular subjunctive third-person)
plygom (first-person plural present subjunctive)
plygoch (plural present second-person subjunctive)
plygont (plural present subjunctive third-person)
plyger (impersonal present subjunctive)
plyg (imperative second-person singular)
plyga (imperative second-person singular)
plyged (imperative singular third-person)
plygwn (first-person imperative plural)
plygwch (imperative plural second-person)
plygent (imperative plural third-person)
plyger (imperative impersonal)
plygu (noun-from-verb singular)
plygedig (participle singular)
plygadwy (participle singular)
plyga i (first-person future singular)
plygaf i (first-person future singular)
plygi di (future second-person singular)
plygith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
plygiff e (future singular third-person)
plygwn ni (first-person future plural)
plygwch chi (future plural second-person)
plygan nhw (future plural third-person)
plygwn i (conditional first-person singular)
plygswn i (conditional first-person singular)
plyget ti (conditional second-person singular)
plygset ti (conditional second-person singular)
plygai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
plygsai fo (conditional singular third-person)
plygen ni (conditional first-person plural)
plygsen ni (conditional first-person plural)
plygech chi (conditional plural second-person)
plygsech chi (conditional plural second-person)
plygen nhw (conditional plural third-person)
plygsen nhw (conditional plural third-person)
plygais i (first-person preterite singular)
plyges i (first-person preterite singular)
plygaist ti (preterite second-person singular)
plygest ti (preterite second-person singular)
plygodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
plygon ni (first-person plural preterite)
plygoch chi (plural preterite second-person)
plygon nhw (plural preterite third-person)
plyga (imperative second-person singular)
plygwch (imperative plural second-person)
plygu
blygu (soft)
mhlygu
phlygu

From Middle Welsh plygu, from Proto-Brythonic *plɨɡɨd, from Latin plicō (“to bend, fold”).

(transitive, physics) to refract, to deflect


anweddu

anweddu (first-person singular present anweddaf)

anweddaf (first-person present singular)
anweddaf (first-person future indicative present singular)
anweddi (future indicative present second-person singular)
anwedda (future indicative present singular third-person)
anweddwn (first-person future indicative plural present)
anweddwch (future indicative plural present second-person)
anweddant (future indicative plural present third-person)
anweddir (future impersonal indicative present)
anweddwn (conditional first-person singular)
anweddwn (first-person imperfect indicative singular subjunctive)
anweddit (conditional second-person singular)
anweddit (imperfect indicative second-person singular subjunctive)
anweddai (conditional singular third-person)
anweddai (imperfect indicative singular subjunctive third-person)
anweddem (conditional first-person plural)
anweddem (first-person imperfect indicative plural subjunctive)
anweddech (conditional plural second-person)
anweddech (imperfect indicative plural second-person subjunctive)
anweddent (conditional plural third-person)
anweddent (imperfect indicative plural subjunctive third-person)
anweddid (conditional impersonal)
anweddid (imperfect impersonal indicative subjunctive)
anweddais (first-person preterite singular)
anweddaist (preterite second-person singular)
anweddodd (preterite singular third-person)
anweddasom (first-person plural preterite)
anweddasoch (plural preterite second-person)
anweddasant (plural preterite third-person)
anweddwyd (impersonal preterite)
anweddaswn (first-person pluperfect singular)
anweddasit (pluperfect second-person singular)
anweddasai (pluperfect singular third-person)
anweddasem (first-person pluperfect plural)
anweddasech (pluperfect plural second-person)
anweddasent (pluperfect plural third-person)
anweddasid (impersonal pluperfect)
anweddesid (impersonal pluperfect)
anweddwyf (first-person present singular subjunctive)
anweddych (present second-person singular subjunctive)
anweddo (present singular subjunctive third-person)
anweddom (first-person plural present subjunctive)
anweddoch (plural present second-person subjunctive)
anweddont (plural present subjunctive third-person)
anwedder (impersonal present subjunctive)
anwedda (imperative second-person singular)
anwedded (imperative singular third-person)
anweddwn (first-person imperative plural)
anweddwch (imperative plural second-person)
anweddent (imperative plural third-person)
anwedder (imperative impersonal)
anweddu (noun-from-verb singular)
anweddedig (participle singular)
anweddadwy (participle singular)
anwedda i (first-person future singular)
anweddaf i (first-person future singular)
anweddi di (future second-person singular)
anweddith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
anweddiff e (future singular third-person)
anweddwn ni (first-person future plural)
anweddwch chi (future plural second-person)
anweddan nhw (future plural third-person)
anweddwn i (conditional first-person singular)
anweddswn i (conditional first-person singular)
anweddet ti (conditional second-person singular)
anweddset ti (conditional second-person singular)
anweddai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
anweddsai fo (conditional singular third-person)
anwedden ni (conditional first-person plural)
anweddsen ni (conditional first-person plural)
anweddech chi (conditional plural second-person)
anweddsech chi (conditional plural second-person)
anwedden nhw (conditional plural third-person)
anweddsen nhw (conditional plural third-person)
anweddais i (first-person preterite singular)
anweddes i (first-person preterite singular)
anweddaist ti (preterite second-person singular)
anweddest ti (preterite second-person singular)
anweddodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
anweddon ni (first-person plural preterite)
anweddoch chi (plural preterite second-person)
anweddon nhw (plural preterite third-person)
anwedda (imperative second-person singular)
anweddwch (imperative plural second-person)
anweddu
hanweddu (prothesis-h)


gwedd

From Middle Welsh gweð, from Proto-Brythonic *gweð, from Proto-Celtic *widā, from Proto-Indo-European *weyd- (“to see”).


parhaol

cy-adj

parhaol (feminine singular parhaol, plural parhaol, not comparable)

parhaol (feminine singular)
parhaol (plural)
parhaol
barhaol (soft)
mharhaol
pharhaol


disgyrchiant

disgyrchiant
ddisgyrchiant (soft)
nisgyrchiant

From disgyrchu (“to gravitate”, from dis- + cyrchu) + -iant.


dosbarth

cy-noun

dosbarth m (plural dosbarthau or dosbarthion or dosbeirth)

dosbarthau (plural)
dosbarthion (plural)
dosbeirth (plural)
dosbarth
ddosbarth (soft)
nosbarth

From Middle Welsh dosparth; By surface analysis, dy- + gosbarth, gwosbarth (“order, rule, government”).
The latter is either (1) from gos- (“meaningless prefix”) + parth (“zone, region, part”), (with gos-, gwos- equivalent to go- + es-) or (2) from go- + a reflex of Proto-Indo-European *sper-.


sliper

cy-noun

sliper f (plural slipers or sliperi or sliperau, diminutive slipren, not mutable)

slipers (plural)
sliperi (plural)
sliperau (plural)
slipren (diminutive)
slipar (alternative)
ysliper (alternative)
sliparsen (alternative)


perthnasedd

perthnasedd m (usually uncountable, plural perthnaseddau)

perthnaseddau (plural)
perthnasedd
berthnasedd (soft)
mherthnasedd
pherthnasedd


perthnaseddol

cy-adj

perthnaseddol (feminine singular perthnaseddol, plural perthnaseddol, not comparable)

perthnaseddol (feminine singular)
perthnaseddol (plural)
perthnaseddol
berthnaseddol (soft)
mherthnaseddol
pherthnaseddol


cyflymder

cy-noun

cyflymder m (usually uncountable, plural cyflymderau)

cyflymderau (plural)
cyflymder
gyflymder (soft)
nghyflymder
chyflymder
cyflymdra (alternative)


cysonyn

cysonion (plural)
cysonyn
gysonyn (soft)
nghysonyn
chysonyn

From cyson (“constant”, adjective) + -yn.

(mathematics, sciences, technology) constant


taenlen

taenlenni (plural)
taenlen
daenlen (soft)
nhaenlen
thaenlen

From taen (“spread”) + llen (“sheet”), a
calque of English spreadsheet.


alaw

alaw f or (canonical masculine plural)
alawau (plural)

Nymphaea alba
Nymphaea alba#Translingual

Cymdeithas Edward Llwyd
w:Cymdeithas Edward Llwyd

(botany) white water lily (Nymphaea alba)


gronyn

gronyn m (plural gronynnau or gronynnos)

gronynnau (plural)
gronynnos (plural)
gronyn
ronyn (soft)
ngronyn

(particle physics) elementary particle, subatomic particle


cawod

cawodau (plural)
cawodydd (plural)
cawod
gawod (soft)
nghawod
chawod
cafod (alternative)
cawad (alternative)

From Middle Welsh cawat, from Proto-Celtic *kowotos (compare Cornish kowas, Breton kaouad), from Proto-Indo-European *(s)ḱeh₁w- (“cold, rainy; north”); compare Latin caurus (“northwestern wind”), Lithuanian šiáurė (“north”), Russian се́вер (séver, “north”).


uniad

uniadau (plural)
uniad
huniad (prothesis-h)


pâr minimol

parau minimol (plural)
pâr minimol
bâr minimol (soft)
mhâr minimol
phâr minimol

[…] ni ddefnyddir y term 'acen' gan fod y term hwnnw yn gallu cyfeirio at nodwedd prosodig ffonolegol ieithoedd megis y Swedeg a'r Siapaneg sy'n gwahaniaethu parau minimol (minimal pairs)

[2023, Jack Pulman-Slater, Traethawd a gyflwynir i fodloni’n rhannol ofynion gradd [An essay submitted to partially satisfy degree requirements], page 23:

[…] not used is the term “accent” as that term can refer to a phonological prosodic feature of languages such as Swedish or Japanese that distinguish minimal pairs


copog

cy-adj

copog (feminine singular copog, plural copog, not comparable)

copog (feminine singular)
copog (plural)

gwalcheryr copog Asia ()

changeable hawk-eagle; crested hawk-eagle


gaeafgysgu

cy-verb

gaeafgysgu (first-person singular present gaeafgysgaf)

gaeafgysgaf (first-person present singular)
gaeafgysgaf (first-person future indicative present singular)
gaeafgysgi (future indicative present second-person singular)
gaeafgwsg (future indicative present singular third-person)
gaeafgysga (future indicative present singular third-person)
gaeafgysgwn (first-person future indicative plural present)
gaeafgysgwch (future indicative plural present second-person)
gaeafgysgant (future indicative plural present third-person)
gaeafgysgir (future impersonal indicative present)
gaeafgysgwn (conditional first-person singular)
gaeafgysgwn (first-person imperfect indicative singular subjunctive)
gaeafgysgit (conditional second-person singular)
gaeafgysgit (imperfect indicative second-person singular subjunctive)
gaeafgysgai (conditional singular third-person)
gaeafgysgai (imperfect indicative singular subjunctive third-person)
gaeafgysgem (conditional first-person plural)
gaeafgysgem (first-person imperfect indicative plural subjunctive)
gaeafgysgech (conditional plural second-person)
gaeafgysgech (imperfect indicative plural second-person subjunctive)
gaeafgysgent (conditional plural third-person)
gaeafgysgent (imperfect indicative plural subjunctive third-person)
gaeafgysgid (conditional impersonal)
gaeafgysgid (imperfect impersonal indicative subjunctive)
gaeafgysgais (first-person preterite singular)
gaeafgysgaist (preterite second-person singular)
gaeafgysgodd (preterite singular third-person)
gaeafgysgasom (first-person plural preterite)
gaeafgysgasoch (plural preterite second-person)
gaeafgysgasant (plural preterite third-person)
gaeafgysgwyd (impersonal preterite)
gaeafgysgaswn (first-person pluperfect singular)
gaeafgysgasit (pluperfect second-person singular)
gaeafgysgasai (pluperfect singular third-person)
gaeafgysgasem (first-person pluperfect plural)
gaeafgysgasech (pluperfect plural second-person)
gaeafgysgasent (pluperfect plural third-person)
gaeafgysgasid (impersonal pluperfect)
gaeafgysgesid (impersonal pluperfect)
gaeafgysgwyf (first-person present singular subjunctive)
gaeafgysgych (present second-person singular subjunctive)
gaeafgysgo (present singular subjunctive third-person)
gaeafgysgom (first-person plural present subjunctive)
gaeafgysgoch (plural present second-person subjunctive)
gaeafgysgont (plural present subjunctive third-person)
gaeafgysger (impersonal present subjunctive)
gaeafgwsg (imperative second-person singular)
gaeafgysga (imperative second-person singular)
gaeafgysged (imperative singular third-person)
gaeafgysgwn (first-person imperative plural)
gaeafgysgwch (imperative plural second-person)
gaeafgysgent (imperative plural third-person)
gaeafgysger (imperative impersonal)
gaeafgysgu (noun-from-verb singular)
gaeafgysgedig (participle singular)
gaeafgysgadwy (participle singular)
gaeafgysga i (first-person future singular)
gaeafgysgaf i (first-person future singular)
gaeafgysgi di (future second-person singular)
gaeafgysgith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
gaeafgysgiff e (future singular third-person)
gaeafgysgwn ni (first-person future plural)
gaeafgysgwch chi (future plural second-person)
gaeafgysgan nhw (future plural third-person)
gaeafgysgwn i (conditional first-person singular)
gaeafgysgswn i (conditional first-person singular)
gaeafgysget ti (conditional second-person singular)
gaeafgysgset ti (conditional second-person singular)
gaeafgysgai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
gaeafgysgsai fo (conditional singular third-person)
gaeafgysgen ni (conditional first-person plural)
gaeafgysgsen ni (conditional first-person plural)
gaeafgysgech chi (conditional plural second-person)
gaeafgysgsech chi (conditional plural second-person)
gaeafgysgen nhw (conditional plural third-person)
gaeafgysgsen nhw (conditional plural third-person)
gaeafgysgais i (first-person preterite singular)
gaeafgysges i (first-person preterite singular)
gaeafgysgaist ti (preterite second-person singular)
gaeafgysgest ti (preterite second-person singular)
gaeafgysgodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
gaeafgysgon ni (first-person plural preterite)
gaeafgysgoch chi (plural preterite second-person)
gaeafgysgon nhw (plural preterite third-person)
gaeafgysga (imperative second-person singular)
gaeafgysgwch (imperative plural second-person)
gaeafgysgu
aeafgysgu (soft)
ngaeafgysgu

/ˌɡeɨ̯avˈɡəsɡɨ/

[ˌɡeɨ̯avˈɡəskɨ]

Mae'r draenog yn paratoi ei nyth cyn iddo aeafgysgu am sawl mis.

The hedgehog prepares its next before it hibernating for several months.


heuldro

cy-noun

heuldro m (plural heuldroadau, not mutable)

haul (“sun”) + tro (“turn”). Calque of English turnsole in the meaning "heliotrope".


lleugylch

lleugylchau (plural)
lleugylch
leugylch (soft)

/ˈɬeɨ̯ɡɨ̞lχ/

From lleu (“light, brightness”) + cylch (“circle”).


cof bach

cofion bach (plural)
cof bach
gof bach (soft)
nghof bach
chof bach
co' bach (alternative)


cofbin

cofbinnau (plural)
cofbin
gofbin (soft)
nghofbin
chofbin


blwyddyn golau

cy-noun

blwyddyn golau f (plural blynyddoedd golau)

blynyddoedd golau (plural)
blwyddyn golau
flwyddyn golau (soft)
mlwyddyn golau

/ˌblʊɨ̯ðɨ̞n ˈɡɔlaɨ̯/

/ˌblʊɨ̯ðɨ̞n ˈɡɔlɛ/

/ˌblʊɨ̯ðɨ̞n ˈɡɔla/

/ˌblʊi̯ðɪn ˈɡɔlai̯/

/ˌblʊi̯ðɪn ˈɡoːlɛ/

/ˌblʊi̯ðɪn ˈɡɔlɛ/

From blwyddyn (“year”) + golau (“light”).


emrallt

emralltiau (plural)
emrallt
hemrallt (prothesis-h)

(ornithology) emerald (hummingbird in the tribe Trochilini)

(entomology) emerald (moth in the subfamily Geometrinae)


awyrgylch

awyrgylchoedd (plural)
awyrgylch
hawyrgylch (prothesis-h)

/au̯ˈərɡɨ̞lχ/

/au̯ˈərɡɪlχ/

awyr (“air”) + cylch (“circle; surroundings”)


rhych

Inherited from Middle Welsh rych, from Proto-Celtic *ɸrikā, from Proto-Indo-European *perḱ- (“to dig”). Cognate with English furrow and Latin porca (“ridge”).

rhych(i)og

grooved; corrugated; striated; furrowed (brow)

rhychu

to groove; corrugate; striate; furrow (brow)


culdir

culdiroedd (plural)
culdir
guldir (soft)
nghuldir
chuldir


cytref

cytrefi (plural)
cytref
gytref (soft)
nghytref
chytref

gwladfa

colony (settlement or governmental unit)


peiran

peiranau (plural)
peiran
beiran (soft)
mheiran
pheiran


ffawt

Borrowed from Middle English faute. Doublet of ffôt.

Mae llinell ffawt yn rhedeg o'r Gogledd i'r De trwy ganol yr Eidal.

A fault line runs from north to south through the middle of Italy.


coloid

coloidau (plural)
coloid
goloid (soft)
ngholoid
choloid


Wranws

Wranws
Hwranws (prothesis-h)
Iwranws (alternative)


llindag

From llin (“line”) + tag (“suffocation”).

(botany) dodder, strangleweed (plant of the genus Cuscuta)

Cuscuta epithymum
Cuscuta epithymum#Translingual

especially common or lesser dodder (Cuscuta epithymum)

Fallopia convolvulus
Fallopia convolvulus#Translingual

(botany, speculative) black bindweed (Fallopia convolvulus)


gogwyddiad

gogwyddiadau (plural)
gogwyddiad
ogwyddiad (soft)
ngogwyddiad


nawnlin

cy-noun

nawnlin f (plural nawnlinau or nawnliniau, not mutable)


llysieuol

cy-adj

llysieuol (feminine singular llysieuol, plural llysieuol, equative mor lysieuol, comparative mwy llysieuol, superlative mwyaf llysieuol)

llysieuol (feminine singular)
llysieuol (plural)
mor lysieuol (equative)
mwy llysieuol (comparative)
mwyaf llysieuol (superlative)
llysieuol
lysieuol (soft)
llyseuol (alternative)

/ɬəˈʃeɨ̯.ɔl/

/ɬəˈʃei̯.ɔl/


treulio

cy-verb

treulio (first-person singular present treuliaf)

treuliaf (first-person present singular)
treuliaf (first-person future indicative present singular)
treuli (future indicative present second-person singular)
treulia (future indicative present singular third-person)
treuliwn (first-person future indicative plural present)
treuliwch (future indicative plural present second-person)
treuliant (future indicative plural present third-person)
treulir (future impersonal indicative present)
treuliwn (conditional first-person singular)
treuliwn (first-person imperfect indicative singular)
treulit (conditional second-person singular)
treulit (imperfect indicative second-person singular)
treuliai (conditional singular third-person)
treuliai (imperfect indicative singular third-person)
treuliem (conditional first-person plural)
treuliem (first-person imperfect indicative plural)
treuliech (conditional plural second-person)
treuliech (imperfect indicative plural second-person)
treulient (conditional plural third-person)
treulient (imperfect indicative plural third-person)
treulid (conditional impersonal)
treulid (imperfect impersonal indicative)
treuliais (first-person preterite singular)
treuliaist (preterite second-person singular)
treuliodd (preterite singular third-person)
treuliasom (first-person plural preterite)
treuliasoch (plural preterite second-person)
treuliasant (plural preterite third-person)
treuliwyd (impersonal preterite)
treuliaswn (first-person pluperfect singular)
treuliasit (pluperfect second-person singular)
treuliasai (pluperfect singular third-person)
treuliasem (first-person pluperfect plural)
treuliasech (pluperfect plural second-person)
treuliasent (pluperfect plural third-person)
treuliasid (impersonal pluperfect)
treuliesid (impersonal pluperfect)
treuliwyf (first-person present singular subjunctive)
treuliech (present second-person singular subjunctive)
treulio (present singular subjunctive third-person)
treuliom (first-person plural present subjunctive)
treulioch (plural present second-person subjunctive)
treuliont (plural present subjunctive third-person)
treulier (impersonal present subjunctive)
treulia (imperative second-person singular)
treulied (imperative singular third-person)
treuliwn (first-person imperative plural)
treuliwch (imperative plural second-person)
treulient (imperative plural third-person)
treulier (imperative impersonal)
treulio (noun-from-verb)
treuliedig (participle)
treuliadwy (participle)
treulia i (first-person future singular)
treuliaf i (first-person future singular)
treuli di (future second-person singular)
treulith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
treuliff e (future singular third-person)
treuliwn ni (first-person future plural)
treuliwch chi (future plural second-person)
treulian nhw (future plural third-person)
treuliwn i (conditional first-person singular)
treulswn i (conditional first-person singular)
treuliet ti (conditional second-person singular)
treulset ti (conditional second-person singular)
treuliai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
treulsai fo (conditional singular third-person)
treulien ni (conditional first-person plural)
treulsen ni (conditional first-person plural)
treuliech chi (conditional plural second-person)
treulsech chi (conditional plural second-person)
treulien nhw (conditional plural third-person)
treulsen nhw (conditional plural third-person)
treuliais i (first-person preterite singular)
treulies i (first-person preterite singular)
treuliaist ti (preterite second-person singular)
treuliest ti (preterite second-person singular)
treuliodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
treulion ni (first-person plural preterite)
treulioch chi (plural preterite second-person)
treulion nhw (plural preterite third-person)
treulia (imperative second-person singular)
treuliwch (imperative plural second-person)
treulio
dreulio (soft)
nhreulio
threulio

llwybr treulio


ffeil

cy-noun

ffeil f (plural ffeiliau or ffeils or ffeilys, not mutable)

ffeiliau (plural)
ffeils (plural)
ffeilys (plural)

(administration, computing) file (means of storing data)


rhaglennu

cy-verb

rhaglennu (first-person singular present rhaglennaf)

rhaglennaf (first-person present singular)
rhaglennaf (first-person future indicative present singular)
rhaglenni (future indicative present second-person singular)
rhaglenn (future indicative present singular third-person)
rhaglenna (future indicative present singular third-person)
rhaglennwn (first-person future indicative plural present)
rhaglennwch (future indicative plural present second-person)
rhaglennant (future indicative plural present third-person)
rhaglennir (future impersonal indicative present)
rhaglennwn (conditional first-person singular)
rhaglennwn (first-person imperfect indicative singular subjunctive)
rhaglennit (conditional second-person singular)
rhaglennit (imperfect indicative second-person singular subjunctive)
rhaglennai (conditional singular third-person)
rhaglennai (imperfect indicative singular subjunctive third-person)
rhaglennem (conditional first-person plural)
rhaglennem (first-person imperfect indicative plural subjunctive)
rhaglennech (conditional plural second-person)
rhaglennech (imperfect indicative plural second-person subjunctive)
rhaglennent (conditional plural third-person)
rhaglennent (imperfect indicative plural subjunctive third-person)
rhaglennid (conditional impersonal)
rhaglennid (imperfect impersonal indicative subjunctive)
rhaglennais (first-person preterite singular)
rhaglennaist (preterite second-person singular)
rhaglennodd (preterite singular third-person)
rhaglennasom (first-person plural preterite)
rhaglennasoch (plural preterite second-person)
rhaglennasant (plural preterite third-person)
rhaglennwyd (impersonal preterite)
rhaglennaswn (first-person pluperfect singular)
rhaglennasit (pluperfect second-person singular)
rhaglennasai (pluperfect singular third-person)
rhaglennasem (first-person pluperfect plural)
rhaglennasech (pluperfect plural second-person)
rhaglennasent (pluperfect plural third-person)
rhaglennasid (impersonal pluperfect)
rhaglennesid (impersonal pluperfect)
rhaglennwyf (first-person present singular subjunctive)
rhaglennych (present second-person singular subjunctive)
rhaglenno (present singular subjunctive third-person)
rhaglennom (first-person plural present subjunctive)
rhaglennoch (plural present second-person subjunctive)
rhaglennont (plural present subjunctive third-person)
rhaglenner (impersonal present subjunctive)
rhaglenn (imperative second-person singular)
rhaglenna (imperative second-person singular)
rhaglenned (imperative singular third-person)
rhaglennwn (first-person imperative plural)
rhaglennwch (imperative plural second-person)
rhaglennent (imperative plural third-person)
rhaglenner (imperative impersonal)
rhaglennu (noun-from-verb singular)
rhaglennedig (participle singular)
rhaglennadwy (participle singular)
rhaglenna i (first-person future singular)
rhaglennaf i (first-person future singular)
rhaglenni di (future second-person singular)
rhaglennith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
rhaglenniff e (future singular third-person)
rhaglennwn ni (first-person future plural)
rhaglennwch chi (future plural second-person)
rhaglennan nhw (future plural third-person)
rhaglennwn i (conditional first-person singular)
rhaglennswn i (conditional first-person singular)
rhaglennet ti (conditional second-person singular)
rhaglennset ti (conditional second-person singular)
rhaglennai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
rhaglennsai fo (conditional singular third-person)
rhaglennen ni (conditional first-person plural)
rhaglennsen ni (conditional first-person plural)
rhaglennech chi (conditional plural second-person)
rhaglennsech chi (conditional plural second-person)
rhaglennen nhw (conditional plural third-person)
rhaglennsen nhw (conditional plural third-person)
rhaglennais i (first-person preterite singular)
rhaglennes i (first-person preterite singular)
rhaglennaist ti (preterite second-person singular)
rhaglennest ti (preterite second-person singular)
rhaglennodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
rhaglennon ni (first-person plural preterite)
rhaglennoch chi (plural preterite second-person)
rhaglennon nhw (plural preterite third-person)
rhaglenna (imperative second-person singular)
rhaglennwch (imperative plural second-person)
rhaglennu
raglennu (soft)

/r̥aɡˈlɛnɨ̞/

(computing) to program (enter a program or other instructions into a computer)


adwaith

adweithiau (plural)
adwaith
hadwaith (prothesis-h)

From ad- + gwaith; calque of English reaction.


cylchred

cy-noun

cylchred m or f (plural cylchredau or cylchredion)

cylchredau (plural)
cylchredion (plural)
cylchred
gylchred (soft)
nghylchred
chylchred


glasu

cy-verb

glasu (first-person singular present glasaf)

glasaf (first-person present singular)
glasaf (first-person future indicative present singular)
glesi (future indicative present second-person singular)
glasa (future indicative present singular third-person)
glaswn (first-person future indicative plural present)
gleswch (future indicative plural present second-person)
glaswch (future indicative plural present second-person)
glasant (future indicative plural present third-person)
glesir (future impersonal indicative present)
glaswn (conditional first-person singular)
glaswn (first-person imperfect indicative singular subjunctive)
glasit (conditional second-person singular)
glasit (imperfect indicative second-person singular subjunctive)
glasai (conditional singular third-person)
glasai (imperfect indicative singular subjunctive third-person)
glasem (conditional first-person plural)
glasem (first-person imperfect indicative plural subjunctive)
glasech (conditional plural second-person)
glasech (imperfect indicative plural second-person subjunctive)
glasent (conditional plural third-person)
glasent (imperfect indicative plural subjunctive third-person)
glesid (conditional impersonal)
glesid (imperfect impersonal indicative subjunctive)
glesais (first-person preterite singular)
glesaist (preterite second-person singular)
glasodd (preterite singular third-person)
glasasom (first-person plural preterite)
glasasoch (plural preterite second-person)
glasasant (plural preterite third-person)
glaswyd (impersonal preterite)
glasaswn (first-person pluperfect singular)
glasasit (pluperfect second-person singular)
glasasai (pluperfect singular third-person)
glasasem (first-person pluperfect plural)
glasasech (pluperfect plural second-person)
glasasent (pluperfect plural third-person)
glasasid (impersonal pluperfect)
glasesid (impersonal pluperfect)
glaswyf (first-person present singular subjunctive)
glesych (present second-person singular subjunctive)
glaso (present singular subjunctive third-person)
glasom (first-person plural present subjunctive)
glasoch (plural present second-person subjunctive)
glasont (plural present subjunctive third-person)
glaser (impersonal present subjunctive)
glasa (imperative second-person singular)
glased (imperative singular third-person)
glaswn (first-person imperative plural)
gleswch (imperative plural second-person)
glaswch (imperative plural second-person)
glasent (imperative plural third-person)
glaser (imperative impersonal)
glasu (noun-from-verb singular)
glasedig (participle singular)
glasadwy (participle singular)
glasa i (first-person future singular)
glasaf i (first-person future singular)
glasi di (future second-person singular)
glasith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
glasiff e (future singular third-person)
glaswn ni (first-person future plural)
glaswch chi (future plural second-person)
glasan nhw (future plural third-person)
glaswn i (conditional first-person singular)
glasswn i (conditional first-person singular)
glaset ti (conditional second-person singular)
glasset ti (conditional second-person singular)
glasai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
glassai fo (conditional singular third-person)
glasen ni (conditional first-person plural)
glassen ni (conditional first-person plural)
glasech chi (conditional plural second-person)
glassech chi (conditional plural second-person)
glasen nhw (conditional plural third-person)
glassen nhw (conditional plural third-person)
glasais i (first-person preterite singular)
glases i (first-person preterite singular)
glasaist ti (preterite second-person singular)
glasest ti (preterite second-person singular)
glasodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
glason ni (first-person plural preterite)
glasoch chi (plural preterite second-person)
glason nhw (plural preterite third-person)
glasa (imperative second-person singular)
glaswch (imperative plural second-person)
glasu
lasu (soft)
nglasu

(botany) to turn green or verdant, to begin to grow, to bud, to sprout


adweithio

adweithio (first-person singular present adweithiaf)

adweithiaf (first-person present singular)
adweithiaf (first-person future indicative present singular)
adweithi (future indicative present second-person singular)
adweithia (future indicative present singular third-person)
adweithiwn (first-person future indicative plural present)
adweithiwch (future indicative plural present second-person)
adweithiant (future indicative plural present third-person)
adweithir (future impersonal indicative present)
adweithiwn (conditional first-person singular)
adweithiwn (first-person imperfect indicative singular)
adweithit (conditional second-person singular)
adweithit (imperfect indicative second-person singular)
adweithiai (conditional singular third-person)
adweithiai (imperfect indicative singular third-person)
adweithiem (conditional first-person plural)
adweithiem (first-person imperfect indicative plural)
adweithiech (conditional plural second-person)
adweithiech (imperfect indicative plural second-person)
adweithient (conditional plural third-person)
adweithient (imperfect indicative plural third-person)
adweithid (conditional impersonal)
adweithid (imperfect impersonal indicative)
adweithiais (first-person preterite singular)
adweithiaist (preterite second-person singular)
adweithiodd (preterite singular third-person)
adweithiasom (first-person plural preterite)
adweithiasoch (plural preterite second-person)
adweithiasant (plural preterite third-person)
adweithiwyd (impersonal preterite)
adweithiaswn (first-person pluperfect singular)
adweithiasit (pluperfect second-person singular)
adweithiasai (pluperfect singular third-person)
adweithiasem (first-person pluperfect plural)
adweithiasech (pluperfect plural second-person)
adweithiasent (pluperfect plural third-person)
adweithiasid (impersonal pluperfect)
adweithiesid (impersonal pluperfect)
adweithiwyf (first-person present singular subjunctive)
adweithiech (present second-person singular subjunctive)
adweithio (present singular subjunctive third-person)
adweithiom (first-person plural present subjunctive)
adweithioch (plural present second-person subjunctive)
adweithiont (plural present subjunctive third-person)
adweithier (impersonal present subjunctive)
adweithia (imperative second-person singular)
adweithied (imperative singular third-person)
adweithiwn (first-person imperative plural)
adweithiwch (imperative plural second-person)
adweithient (imperative plural third-person)
adweithier (imperative impersonal)
adweithio (noun-from-verb)
adweithiedig (participle)
adweithiadwy (participle)
adweithia i (first-person future singular)
adweithiaf i (first-person future singular)
adweithi di (future second-person singular)
adweithith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
adweithiff e (future singular third-person)
adweithiwn ni (first-person future plural)
adweithiwch chi (future plural second-person)
adweithian nhw (future plural third-person)
adweithiwn i (conditional first-person singular)
adweithiswn i (conditional first-person singular)
adweithiet ti (conditional second-person singular)
adweithiset ti (conditional second-person singular)
adweithiai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
adweithisai fo (conditional singular third-person)
adweithien ni (conditional first-person plural)
adweithisen ni (conditional first-person plural)
adweithiech chi (conditional plural second-person)
adweithisech chi (conditional plural second-person)
adweithien nhw (conditional plural third-person)
adweithisen nhw (conditional plural third-person)
adweithiais i (first-person preterite singular)
adweithies i (first-person preterite singular)
adweithiaist ti (preterite second-person singular)
adweithiest ti (preterite second-person singular)
adweithiodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
adweithion ni (first-person plural preterite)
adweithioch chi (plural preterite second-person)
adweithion nhw (plural preterite third-person)
adweithia (imperative second-person singular)
adweithiwch (imperative plural second-person)

From ad- + gweithio; calque of English react.


newidydd

cy-noun

newidydd m (plural newidyddion, not mutable)

From newid (“to change, to transform”) + -ydd (“-er”).

af

electrical engineering
electrical engineering

(physics, electrical engineering) transformer


anwythiad

anwythiadau (plural)
anwythiad
hanwythiad (prothesis-h)

Adapted from English induction by analogy with diddwythiad (“deduction”).

(physics) induction (generation of an electric current)


anwythydd

anwythyddion (plural)
anwythydd
hanwythydd (prothesis-h)

/aˈnʊɨ̯θɨ̞ð/

From anwytho (“to induce; to induct”) + -ydd.


anwytho

cy-verb

anwytho (first-person singular present anwythaf)

anwythaf (first-person present singular)
anwythaf (first-person future indicative present singular)
anwythi (future indicative present second-person singular)
anwytha (future indicative present singular third-person)
anwythwn (first-person future indicative plural present)
anwythwch (future indicative plural present second-person)
anwythant (future indicative plural present third-person)
anwythir (future impersonal indicative present)
anwythwn (conditional first-person singular)
anwythwn (first-person imperfect indicative singular subjunctive)
anwythit (conditional second-person singular)
anwythit (imperfect indicative second-person singular subjunctive)
anwythai (conditional singular third-person)
anwythai (imperfect indicative singular subjunctive third-person)
anwythem (conditional first-person plural)
anwythem (first-person imperfect indicative plural subjunctive)
anwythech (conditional plural second-person)
anwythech (imperfect indicative plural second-person subjunctive)
anwythent (conditional plural third-person)
anwythent (imperfect indicative plural subjunctive third-person)
anwythid (conditional impersonal)
anwythid (imperfect impersonal indicative subjunctive)
anwythais (first-person preterite singular)
anwythaist (preterite second-person singular)
anwythodd (preterite singular third-person)
anwythasom (first-person plural preterite)
anwythasoch (plural preterite second-person)
anwythasant (plural preterite third-person)
anwythwyd (impersonal preterite)
anwythaswn (first-person pluperfect singular)
anwythasit (pluperfect second-person singular)
anwythasai (pluperfect singular third-person)
anwythasem (first-person pluperfect plural)
anwythasech (pluperfect plural second-person)
anwythasent (pluperfect plural third-person)
anwythasid (impersonal pluperfect)
anwythesid (impersonal pluperfect)
anwythwyf (first-person present singular subjunctive)
anwythych (present second-person singular subjunctive)
anwytho (present singular subjunctive third-person)
anwythom (first-person plural present subjunctive)
anwythoch (plural present second-person subjunctive)
anwythont (plural present subjunctive third-person)
anwyther (impersonal present subjunctive)
anwytha (imperative second-person singular)
anwythed (imperative singular third-person)
anwythwn (first-person imperative plural)
anwythwch (imperative plural second-person)
anwythent (imperative plural third-person)
anwyther (imperative impersonal)
anwytho (noun-from-verb singular)
anwythedig (participle singular)
anwythadwy (participle singular)
anwytha i (first-person future singular)
anwythaf i (first-person future singular)
anwythi di (future second-person singular)
anwythith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
anwythiff e (future singular third-person)
anwythwn ni (first-person future plural)
anwythwch chi (future plural second-person)
anwythan nhw (future plural third-person)
anwythwn i (conditional first-person singular)
anwythswn i (conditional first-person singular)
anwythet ti (conditional second-person singular)
anwythset ti (conditional second-person singular)
anwythai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
anwythsai fo (conditional singular third-person)
anwythen ni (conditional first-person plural)
anwythsen ni (conditional first-person plural)
anwythech chi (conditional plural second-person)
anwythsech chi (conditional plural second-person)
anwythen nhw (conditional plural third-person)
anwythsen nhw (conditional plural third-person)
anwythais i (first-person preterite singular)
anwythes i (first-person preterite singular)
anwythaist ti (preterite second-person singular)
anwythest ti (preterite second-person singular)
anwythodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
anwython ni (first-person plural preterite)
anwythoch chi (plural preterite second-person)
anwython nhw (plural preterite third-person)
anwytha (imperative second-person singular)
anwythwch (imperative plural second-person)
anwytho
hanwytho (prothesis-h)

Back-formation from anwythiad (“induction”).

backformation

(physics) to induce (generate an electric current)


anwythol

cy-adj

anwythol (feminine singular anwythol, plural anwythol, not comparable)

anwythol (feminine singular)
anwythol (plural)
anwythol
hanwythol (prothesis-h)

(physics) induced, inductive (arising from inductance)


gyriant

gyriannau (plural)
gyriant
yriant (soft)
ngyriant

(mechanics) drive (propulsion mechanism)


rhewbwynt

rhewbwyntiau (plural)
rhewbwynt
rewbwynt (soft)

/ˈr̥ɛu̯bʊɨ̯nt/

From rhew (“ice, frost”) + pwynt (“point”).


berwbwynt

berwbwyntiau (plural)
berwbwynt
ferwbwynt (soft)
merwbwynt

From berw (“boiling”) + pwynt (“point”).


ymdoddbwynt

ymdoddbwyntiau (plural)
ymdoddbwynt
hymdoddbwynt (prothesis-h)

/əmˈdɔðbʊɨ̯nt/

From ymdoddi (“to melt”) + pwynt (“point”).


pwynt triphlyg

cy-noun

pwynt triphlyg m (plural pwyntiau triphlyg)

pwyntiau triphlyg (plural)
pwynt triphlyg
bwynt triphlyg (soft)
mhwynt triphlyg
phwynt triphlyg


deubegwn

cy-adj

deubegwn (feminine singular deubegwn, plural deubegwn, equative mor ddeubegwn, comparative mwy deubegwn, superlative mwyaf deubegwn)

deubegwn (feminine singular)
deubegwn (plural)
mor ddeubegwn (equative)
mwy deubegwn (comparative)
mwyaf deubegwn (superlative)
deubegwn
ddeubegwn (soft)
neubegwn


atgenhedlu

cy-verb

atgenhedlu (first-person singular present cenhedlaf)

cenhedlaf (first-person present singular)
atgenhedlaf (first-person future indicative present singular)
atgenhedli (future indicative present second-person singular)
atgenhedla (future indicative present singular third-person)
atgenhedlwn (first-person future indicative plural present)
atgenhedlwch (future indicative plural present second-person)
atgenhedlant (future indicative plural present third-person)
atgenhedlir (future impersonal indicative present)
atgenhedlwn (conditional first-person singular)
atgenhedlwn (first-person imperfect indicative singular subjunctive)
atgenhedlit (conditional second-person singular)
atgenhedlit (imperfect indicative second-person singular subjunctive)
atgenhedlai (conditional singular third-person)
atgenhedlai (imperfect indicative singular subjunctive third-person)
atgenhedlem (conditional first-person plural)
atgenhedlem (first-person imperfect indicative plural subjunctive)
atgenhedlech (conditional plural second-person)
atgenhedlech (imperfect indicative plural second-person subjunctive)
atgenhedlent (conditional plural third-person)
atgenhedlent (imperfect indicative plural subjunctive third-person)
atgenhedlid (conditional impersonal)
atgenhedlid (imperfect impersonal indicative subjunctive)
atgenhedlais (first-person preterite singular)
atgenhedlaist (preterite second-person singular)
atgenhedlodd (preterite singular third-person)
atgenhedlasom (first-person plural preterite)
atgenhedlasoch (plural preterite second-person)
atgenhedlasant (plural preterite third-person)
atgenhedlwyd (impersonal preterite)
atgenhedlaswn (first-person pluperfect singular)
atgenhedlasit (pluperfect second-person singular)
atgenhedlasai (pluperfect singular third-person)
atgenhedlasem (first-person pluperfect plural)
atgenhedlasech (pluperfect plural second-person)
atgenhedlasent (pluperfect plural third-person)
atgenhedlasid (impersonal pluperfect)
atgenhedlesid (impersonal pluperfect)
atgenhedlwyf (first-person present singular subjunctive)
atgenhedlych (present second-person singular subjunctive)
atgenhedlo (present singular subjunctive third-person)
atgenhedlom (first-person plural present subjunctive)
atgenhedloch (plural present second-person subjunctive)
atgenhedlont (plural present subjunctive third-person)
atgenhedler (impersonal present subjunctive)
atgenhedla (imperative second-person singular)
atgenhedled (imperative singular third-person)
atgenhedlwn (first-person imperative plural)
atgenhedlwch (imperative plural second-person)
atgenhedlent (imperative plural third-person)
atgenhedler (imperative impersonal)
atgenhedlu (noun-from-verb singular)
atgenhedledig (participle singular)
atgenhedladwy (participle singular)
atgenhedla i (first-person future singular)
atgenhedlaf i (first-person future singular)
atgenhedli di (future second-person singular)
atgenhedlith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
atgenhedliff e (future singular third-person)
atgenhedlwn ni (first-person future plural)
atgenhedlwch chi (future plural second-person)
atgenhedlan nhw (future plural third-person)
atgenhedlwn i (conditional first-person singular)
atgenhedlswn i (conditional first-person singular)
atgenhedlet ti (conditional second-person singular)
atgenhedlset ti (conditional second-person singular)
atgenhedlai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
atgenhedlsai fo (conditional singular third-person)
atgenhedlen ni (conditional first-person plural)
atgenhedlsen ni (conditional first-person plural)
atgenhedlech chi (conditional plural second-person)
atgenhedlsech chi (conditional plural second-person)
atgenhedlen nhw (conditional plural third-person)
atgenhedlsen nhw (conditional plural third-person)
atgenhedlais i (first-person preterite singular)
atgenhedles i (first-person preterite singular)
atgenhedlaist ti (preterite second-person singular)
atgenhedlest ti (preterite second-person singular)
atgenhedlodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
atgenhedlon ni (first-person plural preterite)
atgenhedloch chi (plural preterite second-person)
atgenhedlon nhw (plural preterite third-person)
atgenhedla (imperative second-person singular)
atgenhedlwch (imperative plural second-person)
atgenhedlu
hatgenhedlu (prothesis-h)


bryoffyt

bryoffytau (plural)
bryoffyt
fryoffyt (soft)
mryoffyt

Borrowed from English bryophyte, from Bryophyta.


asid amino

(organic chemistry, biochemistry) amino acid


gwefr

gwefrau (plural)
gwefr
wefr (soft)
ngwefr

From Middle Welsh gwevr (“amber”), from Proto-Celtic *webrus.


hydawdd

cy-adj

hydawdd (feminine singular hydawdd, plural hydawdd, equative mor hydawdd, comparative mwy hydawdd, superlative mwyaf hydawdd, not mutable)

hydawdd (feminine singular)
hydawdd (plural)
mor hydawdd (equative)
mwy hydawdd (comparative)
mwyaf hydawdd (superlative)