plasma

plasmâu (plural)
plasma
blasma (soft)
mhlasma
phlasma


drain

cy-noun

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.


nod

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)


anther

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


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”).


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


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


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.


gamet

gametau (plural)
gamet
amet (soft)
ngamet

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


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.


microb

Borrowed from English microbe, from French microbe.


gwreiddyn

gwreiddiau (plural)
gwreiddyn
wreiddyn (soft)
ngwreiddyn


clais

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

(botany) One of several flowering plants, including:

devil’s bit scabious (Succisa pratensis)


metaboblogaeth

metaboblogaeth f (plural metaboblogaethau)

metaboblogaethau (plural)
metaboblogaeth
fetaboblogaeth (soft)


gwyach

gwyachod (plural)
gwyach
wyach (soft)
ngwyach

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


nydd

(botany) woodbine, honeysuckle (Lonicera)


urdd

urddau (plural)
urdd
hurdd (prothesis-h)

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


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)


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)”).


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


cilfach

cilfachau (plural)
cilfach
gilfach (soft)
nghilfach
chilfach


teyrnas

teyrnas f (plural teyrnasoedd or teyrnasau)

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


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

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


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)


parhaol

cy-adj

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

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


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-.


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)


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”).


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".


emrallt

emralltiau (plural)
emrallt
hemrallt (prothesis-h)

(ornithology) emerald (hummingbird in the tribe Trochilini)

(entomology) emerald (moth in the subfamily Geometrinae)


cytref

cytrefi (plural)
cytref
gytref (soft)
nghytref
chytref

gwladfa

colony (settlement or governmental unit)


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)


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


glasu

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


atgenhedlu

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


chwysigen

cy-noun

chwysigen f (plural chwysigod, not mutable)

/χwəˈsiːɡɛn/

From Middle Welsh chuyssigen, an alteration (with the suffix -en) of Proto-Brythonic *guɨsig, from Latin vēsīca (“bladder”).


grawn

grawn m (collective, singulative gronyn)

gronyn (singulative)
grawn
rawn (soft)
ngrawn

From Proto-Brythonic *grọn, from Proto-Celtic *grānom, from Proto-Indo-European *ǵr̥h₂nóm. Compare Breton greun, Irish grán, Latin grānum.

(zoology) roe, spawn (fish or amphibian eggs)


crychiad

crychiadau (plural)
crychiad
grychiad (soft)
nghrychiad
chrychiad

(agriculture, phytopathology) curl, plant disease that causes leaves to shrivel, esp. Potato leafroll virus


llwg

possibly related to llwgu (“to starve”).

(veterinary medicine) foot rot in cows and sheep


undydd unnos

/ˌɨ̞ndɨ̞ð ˈɨ̞nɔs/

/ˌɪndɪð ˈɪnɔs/

(idiomatic, biology) shortlived, ephemeral


undydd unnos

undydd unnos
hundydd unnos (prothesis-h)

/ˌɨ̞ndɨ̞ð ˈɨ̞nɔs/

/ˌɪndɪð ˈɪnɔs/


gronyn paill

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


trochydd

trochyddion (plural)
trochydd
drochydd (soft)
nhrochydd
throchydd

From trochi (“to immerse, to plunge”) + -ydd.

white-throated dipper
white-throated dipper

Cinclus cinclus
Cinclus cinclus#Translingual

(ornithology) white-throated dipper (Cinclus cinclus)


tiwnig

tiwnigau (plural)
tiwnig
diwnig (soft)
nhiwnig
thiwnig

Borrowed from English tunic, from Latin tunica.


rhywogaeth

rhywogaeth
rywogaeth (soft)
rhyfogaeth (alternative)
rhywfogaeth (alternative)
rhywiogaeth (alternative)
rhywogiaeth (alternative)

/r̥ɪu̯.ˈɔɡaɨ̯θ/

/r̥ɪu̯.ˈɔɡɛθ/

/r̥ɪu̯.ˈoːɡaɨ̯θ/

/r̥ɪu̯.ˈɔɡaɨ̯θ/

/r̥ɪu̯.ˈoːɡɛθ/

/r̥ɪu̯.ˈɔɡɛθ/

From rhywog (“proper, relating to itself”) + -aeth.


isrywogaeth

/ˌiːsrɪu̯.ˈɔɡaɨ̯θ/

/ˌiːsrɪu̯.ˈɔɡɛθ/

/ˌiːsrɪu̯.ˈoːɡaɨ̯θ/

/ˌiːsrɪu̯.ˈɔɡaɨ̯θ/

/ˌiːsrɪu̯.ˈoːɡɛθ/

/ˌiːsrɪu̯.ˈɔɡɛθ/

From is- (“sub-”) + rhywogaeth (“species”).


colofnig

colofnigau (plural)
colofnig
golofnig (soft)
ngholofnig
cholofnig


ofari

ofarïau (plural)
ofari
hofari (prothesis-h)


wyfa

cy-noun

wyfa f (plural wyfaoedd or wyfeydd or wyfâu)

wyfaoedd (plural)
wyfeydd (plural)
wyfâu (plural)
wyfa
hwyfa (prothesis-h)


llabed

llabed f or m (plural llabedau or llabedi)

llabedau (plural)
llabedi (plural)
llabed
labed (soft)


ailgyfuniad

ailgyfuniadau (plural)
ailgyfuniad
hailgyfuniad (prothesis-h)


culddail

cy-adj

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

culddail (feminine singular)
culddail (plural)
culddail
gulddail (soft)
nghulddail
chulddail

(botany) narrow-leaved, having narrow leaves


amlgellog

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

amlgellog (feminine singular)
amlgellog (plural)
mor amlgellog (equative)
mwy amlgellog (comparative)
mwyaf amlgellog (superlative)
amlgellog
hamlgellog (prothesis-h)

/ˌamlˈɡɛɬɔɡ/

[ˌaml̩ˈɡɛɬɔɡ]


cellog

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

cellog (feminine singular)
cellog (plural)
cellog
gellog (soft)
nghellog
chellog


chwiliedydd genynnau

cy-noun

chwiliedydd genynnau m (plural chwiliedyddion genynnau, not mutable)

(genetics) hybridization probe, gene probe


trilliw

trilliwiau (plural)
trilliw
drilliw (soft)
nhrilliw
thrilliw

Viola tricolor
Viola tricolor#Translingual


briger

briger m (collective, singulative brigeryn)

brigeryn (singulative)
briger
friger (soft)
mriger


brigerog

cy-adj

brigerog (feminine singular brigerog, plural brigerogion, not comparable)

brigerog (feminine singular)
brigerogion (plural)
brigerog
frigerog (soft)
mrigerog

/brɪˈɡeːrɔɡ/

(botany) staminated, staminated, characterised by having stamens


cawod goch briger Gwener

cawod goch briger Gwener
gawod goch briger Gwener (soft)
nghawod goch briger Gwener
chawod goch briger Gwener

y gawod goch (“rust, red blight”) + briger Gwener (“maidenhair ferns”).

(phytopathology) maidenhair rust (Hyalopsora adianti-capilli-veneris)


cawod goch

y gawod goch (canonical feminine)
cawod goch
gawod goch (soft)
nghawod goch
chawod goch

(phytopathology) rust, rubigo, red-colored fungal infection of plants


cawod goch rhedynen gorniog

cawod goch rhedynen gorniog
gawod goch rhedynen gorniog (soft)
nghawod goch rhedynen gorniog
chawod goch rhedynen gorniog

y gawod goch (“rust, red blight”) + rhedynen gorniog (“beech fern”).

(phytopathology) beech fern rust (Uredinopsis filicina)


glesni

(phytopathology) chlorosis (yellowing or blanching of plant tissue due to chlorophyll deficiency)


malltod

mall (“pestilence, blight”) + -dod (“-ness”).

af

(veterinary medicine) liver rot, fascioliasis (in sheep)


cawod goch tormaen

cawod goch tormaen
gawod goch tormaen (soft)
nghawod goch tormaen
chawod goch tormaen

y gawod goch (“rust, red blight”) + tormaen (“saxifrage”).

(phytopathology) saxifrage rust (Melampsora vernalis)


parddu tormaen

parddu tormaen
barddu tormaen (soft)
mharddu tormaen
pharddu tormaen

parddu (“smut”) + tormaen (“saxifrage”).

(phytopathology) saxifrage smut (Entyloma chrysosplenii)


rhwd marchredyn

(phytopathology) male fern rust (Milesina carpatorum)


ffenoleg

cy-adj

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

ffenoleg (feminine singular)
ffenoleg (plural)


asid brasterog

cy-noun

asid brasterog m (plural asidau brasterog or asid brasterogion)

asidau brasterog (plural)
asid brasterogion (plural)

(organic chemistry, biochemistry) fatty acid.


asid glyserig

(organic chemistry, biochemistry) glyceric acid


llydanddail

cy-adj

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

llydanddail (feminine singular)
llydanddail (plural)
llydanddail
lydanddail (soft)

(botany) broad-leaved, having broad leaves


rhwd

Perhaps from Proto-Celtic *rutu-, as in the placename Rutupiae.


croesryw

croes (“cross”) + rhyw (“species, breed”)


croesryw

cy-adj

croesryw (feminine singular croesryw, plural croesryw, equative mor groesryw, comparative mwy croesryw, superlative mwyaf croesryw)

croesryw (feminine singular)
croesryw (plural)
mor groesryw (equative)
mwy croesryw (comparative)
mwyaf croesryw (superlative)
croesryw
groesryw (soft)
nghroesryw
chroesryw


uslen

uslenion (plural)
uslennau (plural)
uslen
huslen (prothesis-h)

us (“chaff, husks”) + llen (“covering”).


uslennog

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

uslennog (feminine singular)
uslennog (plural)
uslennog
huslennog (prothesis-h)


crynddail

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

crynddail (feminine singular)
crynddail (plural)
crynddail
grynddail (soft)
nghrynddail
chrynddail
crwnddail (alternative)

(botany) round-leaved, having round leaves


dauwynebog

dauwynebog
ddauwynebog (soft)
nauwynebog
deuwynebog (alternative)

From dau (“two”) + wyneb (“face”) + -og.

(botany) pansy, heartsease (Viola tricolor)


parddu briallu

parddu briallu
barddu briallu (soft)
mharddu briallu
pharddu briallu

parddu (“smut”) + briallu (“primroses”).

(phytopathology) bird's-eye-primrose smut (Urocystis primulicola)


pengoch

pengoch
bengoch (soft)
mhengoch
phengoch

(botany) Lamioideae (deadnettles and horehounds)

Acanthis flammea
Acanthis flammea#Translingual

(ornithology) redpoll (Acanthis), especially common redpoll (Acanthis flammea)


meinddail

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

meinddail (feminine singular)
meinddail (plural)
meinddail
feinddail (soft)

(botany) narrow-leaved, having narrow leaves

dyfrllys meinddail

slender-leaved pondweed; sharp-leaved pondweed


cysb

(veterinary medicine) grass tetany, the staggers


mallter

mall (“pestilence, blight”) + -ter (“-ness”).


atchweliad

(biology, genetics, psychology, statistics) regression


apig

apigau (plural)
apig
hapig (prothesis-h)


fector

(biology, medicine) a vector (a means of transmission)


isomorffedd

cy-noun

isomorffedd m (usually uncountable, plural isomorffeddau)

isomorffeddau (plural)
isomorffedd
hisomorffedd (prothesis-h)

(biology, chemistry, physics) isomorphism


rhwd mynawyd-y-bugail

rhwd mynawyd-y-bugail m or f (uncountable)

rhwd mynawyd-y-bugail
rwd mynawyd-y-bugail (soft)

(phytopathology) geranium rust (Uromyces geranii)


cawod goch cegid

cawod goch cegid
gawod goch cegid (soft)
nghawod goch cegid
chawod goch cegid

y gawod goch (“rust, red blight”) + cegid (“hemlock”).

(phytopathology) cowbane rust (Puccinia cicutae)


deilgrwn

cy-adj

deilgrwn (feminine singular deilgron, plural deilgrwn, not comparable)

deilgron (feminine singular)
deilgrwn (plural)
deilgrwn
ddeilgrwn (soft)
neilgrwn


eiddewddail

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

eiddewddail (feminine singular)
eiddewddail (plural)
eiddewddail
heiddewddail (prothesis-h)

(botany) ivy-leaved, having leaves like ivy


deurywiol

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

deurywiol (feminine singular)
deurywiol (plural)
deurywiol
ddeurywiol (soft)
neurywiol

(biology) hermaphrodite, hermaphroditic
(botany) bisexual


berog

berog (feminine singular berog, plural berog, equative mor ferog, comparative mwy berog, superlative mwyaf berog)

berog (feminine singular)
berog (plural)
mor ferog (equative)
mwy berog (comparative)
mwyaf berog (superlative)
berog
ferog (soft)
merog

(botany) spearlike, in the shape of a spear


ungellog

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

ungellog (feminine singular)
ungellog (plural)
mor ungellog (equative)
mwy ungellog (comparative)
mwyaf ungellog (superlative)
ungellog
hungellog (prothesis-h)

/ˌamlˈɡɛɬɔɡ/

[ˌaml̩ˈɡɛɬɔɡ]


cribell

cribellau (plural)
cribell
gribell (soft)
nghribell
chribell

especially yellow rattle (Rhinanthus minor)


fflagelwm

cy-noun

fflagelwm m (plural fflagella, not mutable)

Learned borrowing from English flagellum, from Latin flagellum. Doublet of fflangell and ffrewyll.


parddu'r briwydd

parddu'r briwydd
barddu'r briwydd (soft)
mharddu'r briwydd
pharddu'r briwydd

(phytopathology) bedstraw smut (Melanotaenium endogenum)


gwrychddail

cy-adj

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

gwrychddail (feminine singular)
gwrychddail (plural)
gwrychddail
wrychddail (soft)
ngwrychddail

(botany) bristle-leaved, having bristly leaves


blaenllym

blaenllym (feminine singular blaenllem, plural blaenllymion, not comparable)

blaenllem (feminine singular)
blaenllymion (plural)
blaenllym
flaenllym (soft)
mlaenllym

(botany) sharp-tipped, having sharp tips


rhwd mintys

(phytopathology) mint rust (Puccinia menthae)


cancr

Inherited from Middle Welsh cagkyr, from Middle English canker, cancre. Doublet of canser.

(phytopathology) canker (decaying disease of plants)


manddryllddail

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

manddryllddail (feminine singular)
manddryllddail (plural)
manddryllddail
fanddryllddail (soft)

mân (“fine”) + dryll (“broken”) + dail (“leaves”).


gaeafgwsg

gaeafgysgau (plural)
gaeafgwsg
aeafgwsg (soft)
ngaeafgwsg


hafgwsg

cy-noun

hafgwsg m (plural hafgysgau, not mutable)


rhathell

rhathellau (plural)
rhathell
rathell (soft)


deurywiaeth

deurywiaeth
ddeurywiaeth (soft)
neurywiaeth

From deu- (“bi-, di-”) + rhywiaeth (“sexuality”).

af

(biology) hermaphroditism
(botany) bisexuality