robot

cy-noun

robot m (plural robotiaid or robotau, not mutable)

Borrowed from English robot, from Czech robot.


car

From Middle Welsh carr, from Proto-Brythonic *karr, from Proto-Celtic *karros.


men

menni (plural)
mennau (plural)
men
fen (soft)

Variant of earlier ben, from Proto-Celtic *bend(n)ā (whence Latin benna), from Proto-Indo-European *bʰendʰ- (“to bind”).


tractor

cy-noun

tractor m (plural tractorau or tractors)

tractorau (plural)
tractors (plural)
tractor
dractor (soft)
nhractor
thractor


piano

pianoau (plural)
pianos (plural)
piano
biano (soft)
mhiano
phiano


cobalt

Borrowed from English cobalt, from German Kobold (“goblin”).


mast

mast m (plural mastiau or mestys or mestydd)

mastiau (plural)
mestys (plural)
mestydd (plural)


banjo

banjos (plural)
banjoau (plural)
banjo
fanjo (soft)
manjo


ser

ser m (plural serrod or serroedd, not mutable)

From Old Welsh serr, Proto-Celtic *serrā. Cf. Middle Irish serr.


offer

offer f (plural offerau or offeriau or offrau)

offerau (plural)
offeriau (plural)
offrau (plural)
offer
hoffer (prothesis-h)


cart

certi (plural)
ceirt (plural)
cart
gart (soft)
nghart
chart

(South Wales) cart (two-wheeled vehicle)


trap

trap m (plural trapiau or trapau or traps)

trapiau (plural)
trapau (plural)
traps (plural)
trap
drap (soft)
nhrap
thrap


Wicipedia

Croeso i Wicipedia, y gwyddoniadur rhydd y gall unrhyw un ei olygu

Welcome to Wikipedia, the free encyclopedia anyone can edit


arf

From Middle Welsh arf, from Proto-Brythonic *arβ̃, borrowed through Vulgar Latin from Latin arma.


mẁg

mygau (plural)
mygiau (plural)
mẁg
fẁg (soft)


tun

tuniau (plural)
tunnau (plural)
tun
dun (soft)
nhun
thun

From English tin, from Middle English tin, from Old English tin, from Proto-West Germanic *tin, from Proto-Germanic *tiną.


catalog

catalogau (plural)
catalog
gatalog (soft)
nghatalog
chatalog


nod

nod m (plural nodau or nodion, not mutable)

Borrowed from English node, from Latin nōdus.


crwth

crythau (plural)
crwth
grwth (soft)
nghrwth
chrwth

From Middle Welsh crwth, from Proto-Brythonic *kruθ, from Proto-Celtic *kruttos (“round thing”), perhaps related to Latvian krūtis (“breast, bust”), from Proto-Indo-European *krū̆t; but it could instead be loaned from a non-Indo-European substrate. Possibly related to Proto-Celtic *krundis (“round”). Compare Old Irish crott (“harp, lute”).


tandem

tandemau (plural)
tandem
dandem (soft)
nhandem
thandem


cert

certi (plural)
ceirt (plural)
cert
gert (soft)
nghert
chert


pres

cy-adj

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

gem pres main

slender burnished brass, Thysanoplusia orichalcea

gem pres prin

rare burnished brass, Diachrysia chryson


thermostat

cy-noun

thermostat m (plural thermostatau, not mutable)


wagen

wagen m (plural wageni or wagenau, not mutable)


dur

cy-adj

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

dur (feminine singular)
dur (plural)
dur
ddur (soft)
nur

From Middle Welsh dur, from Proto-Brythonic *dʉr, from Latin dūrus (“hard”).


pensil

cy-noun

pensil m (plural pensiliau or pensilau or pensilion)

pensiliau (plural)
pensilau (plural)
pensilion (plural)
pensil
bensil (soft)
mhensil
phensil

Borrowed from English pencil, from Anglo-Norman and Old French pincil (see the variant pincel, which gave rise to Modern French pinceau (“paintbrush”)), from Latin pēnicillum, diminutive of pēniculus (“brush”), itself a diminutive of pēnis (“tail; penis”).


sinc

Borrowed from English sink, from Proto-Germanic *sinkwaną, from Proto-Indo-European *sengʷ- (“to fall, sink”).


aur

cy-noun

aur m (usually uncountable, plural eurau)

From Middle Welsh eur, from Proto-Brythonic *ėür, from Vulgar Latin from Latin aureus (“golden”, adjective). The vowel au (/aɨ̯/) must have undergone internal i-affection, showing that this word is derived from the adjective aureus, not the noun aurum, which gave the now archaic synonym awr (not to be confused with awr (“hour”) from hōra).


aur

cy-adj

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

aur (feminine singular)
aur (plural)
aur
haur (prothesis-h)


arian

cy-noun

arian m (usually uncountable, plural ariannau or ariannoedd)

From Middle Welsh ariant, from Old Welsh argant, from Proto-Brythonic *arɣant, from Proto-Celtic *argantom (“silver”), from Proto-Indo-European *h₂erǵ- (“white; shine”). Compare Breton arc'hant/argant, Irish airgead and Latin argentum.


arian

cy-adj

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

arian (feminine singular)
arian (plural)
arian
harian (prothesis-h)


dolen

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

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


pelen

pelennau (plural)
pelenni (plural)
pelen
belen (soft)
mhelen
phelen


yw

From Proto-Celtic *iwos (“yew”), from Proto-Indo-European *h₁eyHw- (“yew”).


moch

From Proto-Brythonic *mox (“pig”), from Proto-Celtic *mokkus.

(figuratively) greedy, dirty, lazy, drunk, or immoral persons

(mining) small pumps used underground in coal mines to remove water


tacsi

tacsis (plural)
tacsi
dacsi (soft)
nhacsi
thacsi


cryman

crymanau (plural)
cryman
gryman (soft)
nghryman
chryman

From crwm (“convex; crooked, bent, curved, bowed, hooked”) + -an (diminutive suffix).


cyllell

cy-noun

cyllell f (plural cyllyll or cylleill or cyllaill)

cyllyll (plural)
cylleill (plural)
cyllaill (plural)
cyllell
gyllell (soft)
nghyllell
chyllell

From Middle Welsh kyllell from Proto-Brythonic *kullell (compare Cornish kollell, Breton kontell), from Latin cultellus.


einion

einionau (plural)
einion
heinion (prothesis-h)

From Middle Welsh einiawn, from Old Welsh ennian. Compare Old Irish indéin (Irish inneoin).


antimoni

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


batog

batogau (plural)
batog
fatog (soft)
matog

From English mattock with change of initial consonant.


trol

trol f (plural troliau or trolau, diminutive trolen or trolyn)

troliau (plural)
trolau (plural)
trolen (diminutive)
trolyn (diminutive)
trol
drol (soft)
nhrol
throl

troi'r drol

to cause an argument; to upset the (apple)cart


awyren

awyrennau (plural)
awyren
hawyren (prothesis-h)

Teithiodd hi i Ffrainc mewn awyren.


megin

Possibly from Proto-Celtic *makīnā, from the root *mak- (“leather bag”). See Proto-Germanic *magô (“stomach”) for more discussion on the root and cognates.


tanc

tanciau (plural)
tanc
danc (soft)
nhanc
thanc


cist

cistiau (plural)
cist
gist (soft)
nghist
chist

From Old English cist or Middle English kist.


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)
uchafedig (participle)
uchafadwy (participle)
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)


gwaled

gwaledau (plural)
gwaledi (plural)
gwaled
waled (soft)
ngwaled


aloi

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


telyn

telynau (plural)
telyn
delyn (soft)
nhelyn
thelyn


soddgrwth

cy-noun

soddgrwth m (plural soddgrythau, not mutable)


bas dwbl

basau dwbl (plural)
bas dwbl
fas dwbl (soft)
mas dwbl


basgrwth

basgrythau (plural)
basgrwth
fasgrwth (soft)
masgrwth


llwy

From Proto-Brythonic *lluɨɣ, from Proto-Celtic *leigā. Cognate with Cornish lo, Breton loa (Vannes dialect loé, lui).


haearn

From Middle Welsh haearn, from Proto-Brythonic *hiyarno-, from Proto-Celtic *īsarnom (compare Cornish horn, Breton houarn, Irish iarann), from Proto-Indo-European *h₁ésh₂r̥ (“blood, red”).


templed

templedi (plural)
templed
dempled (soft)
nhempled
thempled


fforc

From English fork, from Middle English forke, from Old English forca, from Proto-West Germanic *furkō, from Latin furca. Doublet of fforch.


fforch

cy-noun

fforch f (plural ffyrch or fforchau, not mutable)

From Proto-Brythonic *forx, borrowed from Latin furca. Doublet of fforc.


teclyn

teclynnau (plural)
teclyn
declyn (soft)
nheclyn
theclyn


triongl

trionglau (plural)
triongl
driongl (soft)
nhriongl
thriongl

From tri (“three”) + ongl (“angle, corner”).


cyfrifiadur

cyfrifiaduron (plural)
cyfrifiadur
gyfrifiadur (soft)
nghyfrifiadur
chyfrifiadur


allweddell

allweddellau (plural)
allweddell
hallweddell (prothesis-h)

keyboard (set of keys used to operate a typewriter, computer etc.)


wici

Borrowed from English wiki, from Hawaiian wikiwiki (“quickly”).


cwdyn

cydynnau (plural)
cwdyn
gwdyn (soft)
nghwdyn
chwdyn


potel

poteli (plural)
potel
botel (soft)
mhotel
photel


llong

From Middle Welsh llog, from Proto-Brythonic *llong, from Proto-Celtic *longā (“boat, vessel”).

Cydnabyddir pwysigrwydd cenedlaethol y llong.

The ship’s national importance is recognised.


gwydr

gwydrau (plural)
gwydr
wydr (soft)
ngwydr

From Middle Welsh gwydyr, from Proto-Brythonic *gwɨdr, from Latin vitrum.


gyrrwr

gyrwyr (plural)
gyrrwr
yrrwr (soft)
ngyrrwr


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)
trefnedig (participle)
trefnadwy (participle)
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


plât

platiau (plural)
plât
blât (soft)
mhlât
phlât

From Middle English plate or directly from Old French plate.


corwg

corygau (plural)
coryglau (plural)
corwg
gorwg (soft)
nghorwg
chorwg

From Proto-Brythonic *korug, from Proto-Celtic *korukos (“leather boat”) (from which also Irish curach), probably from Proto-Indo-European *(s)koro- (“leather”) (compare Latin corium, Russian скора́ (skorá), Sanskrit चर्मन् (carman)).


saethyddiaeth

cy-noun

saethyddiaeth f (uncountable, not mutable)

/seɨ̯ˈθəðjaɨ̯θ/

/seɨ̯ˈθəðjɛθ/

/sei̯ˈθəðjɛθ/

archery (practice or sport of shooting arrows with a bow)


sach

From Middle Welsh sach, from Proto-Brythonic *sax, from Latin saccus, from Ancient Greek σάκκος (sákkos, “bag of coarse cloth”), from Semitic.


sachell

cy-noun

sachell f (plural sachellau, not mutable)


iwcalili

iwcalilis (plural)
iwcalili
hiwcalili (prothesis-h)

Borrowed from English ukulele, from Hawaiian ʻukulele.


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


bicer

biceri (plural)
bicerau (plural)
bicer
ficer (soft)
micer


clipfwrdd

clipfyrddau (plural)
clipfwrdd
glipfwrdd (soft)
nghlipfwrdd
chlipfwrdd

From clip + bwrdd, a calque of English clipboard.


microdon

microdonnau (plural)
microdon
ficrodon (soft)


costrel

cy-noun

costrel f (plural costrelau or costreli)

costrelau (plural)
costreli (plural)
costrel
gostrel (soft)
nghostrel
chostrel

Inherited from Middle Welsh costrel, from Middle English costrel, costrelle, from Old French costerel, modification of costeret.

costrelydd

one who carries wine or water in bottles; bottle-maker or seller


symbal

symbal m or f (plural cymbalau, not mutable)


metachwiliadur

metachwiliadur m (plural metachwiliaduron)

metachwiliaduron (plural)
metachwiliadur
fetachwiliadur (soft)


microgyfrifiadur

microgyfrifiadur m (plural microgyfrifiaduron)

microgyfrifiaduron (plural)
microgyfrifiadur
ficrogyfrifiadur (soft)


minigyfrifiadur

minigyfrifiadur m (plural minigyfrifiaduron)

minigyfrifiaduron (plural)
minigyfrifiadur
finigyfrifiadur (soft)


chwiliadur

chwiliadur m (plural chwiliaduron, not mutable)


llofiadur

llofiaduron (plural)
llofiadur
lofiadur (soft)


pladur

pladuriau (plural)
pladur
bladur (soft)
mhladur
phladur

From older paladur, from palu (“to dig”) + -adur (agent suffix).


caib

ceibiau (plural)
caib
gaib (soft)
nghaib
chaib

Closely resembles Scottish Gaelic caibe (“mattock”), but deriving the -b- in both Gaelic and Welsh from a common inherited source is difficult. Given that the Gaelic word is not found in Irish, it is possible to postulate that the Gaelic word is a borrowing from a Brittonic substrate language.


gordd

From Middle Welsh orð (with g added in nonleniting environments), from Proto-Brythonic *orð (whence also Old Breton ord, modern Breton horzh (“sledgehammer”), and the demonym Ordo-vices), from Proto-Celtic *ordos (whence also Old Irish ord). Connections outside Celtic are uncertain, but it may be related to Old Armenian ուռն (uṙn, “hammer”).


bwced

bwcedi (plural)
bwced
fwced (soft)
mwced


carfil

Borrowed from Middle English caruyll, caruile, carvile (“carvel”, a kind of light ship).


carfil

From car (“vehicle, car, sled, dray”) + mil (“animal, beast, creature”).

affix

working beast, dray horse, clumsy animal, monster


carfil

carfilod (plural)
carfil
garfil (soft)
ngharfil
charfil

Unknown, but the second element is probably English bill (“beak”).


Twitter

Twitter
Dwitter (soft)
Nhwitter
Thwitter


malwod

cy-noun

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.)


cysylltiad

cysylltiadau (plural)
cysylltiad
gysylltiad (soft)
nghysylltiad
chysylltiad

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

that which connects; (Internet) link, airlink


Wiciadur

Blend of wici (“wiki”) + geiriadur (“dictionary”).


data-bas

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

From data + bas. Cognate with English database.


cyfrifiannell

cy-noun

cyfrifiannell f (plural cyfrifriannellau)

cyfrifriannellau (plural)
cyfrifiannell
gyfrifiannell (soft)
nghyfrifiannell
chyfrifiannell

From cyfrifiant (“reckoning, account”) + -ell.


pâl

Borrowed from Latin pala; compare Breton pal, Cornish pal.


cwd

cy-noun

cwd m (plural cydau, diminutive cwdyn or cydyn)

cydau (plural)
cwdyn (diminutive)
cydyn (diminutive)
cwd
gwd (soft)
nghwd
chwd

If not borrowed from Latin cutis (“skin”), cwd is the sole surviving Celtic reflex (via Proto-Brythonic *kud, from Proto-Celtic *kutis) of Proto-Indo-European *kuH-ti-, which is composed of the root *kew(H)- (zero-grade without s-mobile form of *(s)kewH- (“to cover”)) + *-tis (a deverbal abstract noun suffix). In addition to Latin cutis, cognate with Lithuanian kutỹs (“purse”), Old English hȳd (modern English hide (noun)).

suf

zero-grade without s-mobile form of <i class="Latn mention" lang="ine-pro">*(s)kewH-</i> (“to cover”)

(anatomy) scrotum, cod; any bag-like cavity or organ in body, sac


nabl

cy-noun

nabl m or f (plural nablau, not mutable)

Borrowed from Ancient Greek νάβλα (nábla), from Biblical Hebrew נֵ֤בֶל (nēḇel).

(biblical, historical, music) a nabla, a psaltery


nodwydd

nodwydd f (plural nodwyddau, not mutable)

From Proto-Celtic *snātantā (compare Breton nodoez, Old Irish snáthat), from Proto-Indo-European *sneh₁- (“to spin, twist”).


cerwyn

cerwynau (plural)
cerwyni (plural)
cerwyn
gerwyn (soft)
ngherwyn
cherwyn

From Middle Welsh kerwyn, from Proto-Brythonic *keruɨn, borrowed from Vulgar Latin *cerēna, from Latin carīna (“keel”).


rhwyd

rhwydi (plural)
rhwydau (plural)
rhwyd
rwyd (soft)

From Middle Welsh rwyt, from Proto-Brythonic *rruɨd, from Latin rēte.

net (mesh; device made of mesh for catching fish, birds, etc.)


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”).

a person as embodiment or carrier of qualities


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


coden

codennau (plural)
coden
goden (soft)
nghoden
choden

From cod (“bag, pouch, sack, poke”) + -en (diminutive ending).


rhaw

rhawiau (plural)
rhofiau (plural)
rhaw
raw (soft)

From Middle Welsh raw, from Proto-Brythonic *rrọβ̃ (compare Cornish rêv, Middle Breton reuf), from Proto-Celtic *rāmyos (“oar”) (compare Old Irish rámae), from Proto-Indo-European *h₁reh₁- (“to row”).


combein

combeiniau (plural)
combein
gombein (soft)
nghombein
chombein


plwm

cy-adj

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

plwm (feminine singular)
plwm (plural)
plwm
blwm (soft)
mhlwm
phlwm

From Middle Welsh plwm, from Proto-Brythonic *plum, from Latin plumbum.


saeth

From Middle Welsh saeth, from Proto-Brythonic *saɣeθ, a borrowing from Latin sagitta. Cognate with Cornish seth, Breton saezh, Irish saighead.


catamarán

cy-noun

catamarán m or f (plural catamaranau or catamaráns)

catamaranau (plural)
catamaráns (plural)
catamarán
gatamarán (soft)
nghatamarán
chatamarán

Borrowed from English catamaran, from Tamil கட்டுமரம் (kaṭṭumaram).


dysgl

dysglau (plural)
dysgl
ddysgl (soft)
nysgl

Inherited from Middle Welsh dyskyl, from Latin disculus, diminutive of discus.


porth

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


popty

poptai (plural)
popty
bopty (soft)
mhopty
phopty

Mae 'na bysgodyn yn y popty.


cleddyf

cleddyfau (plural)
cleddyf
gleddyf (soft)
nghleddyf
chleddyf

From Middle Welsh cledyf, from Proto-Brythonic *klėðɨβ̃, from Proto-Celtic *kladiwos (compare Old Irish claideb, Breton klezeñv).


cŷn

cynion (plural)
cŷn
gŷn (soft)
nghŷn
chŷn

From Middle Welsh kyn, from Proto-Brythonic *kün, from Latin cuneus (“wedge”).


cromad

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


banjô

banjôs (plural)
banjoau (plural)
banjô
fanjô (soft)
manjô


niwclear

cy-adj

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

niwclear (feminine singular)
niwclear (plural)


ffwrn

From Middle Welsh ffwrn, from Proto-Brythonic *furn, from Latin furnus. Cognate with Cornish forn (“oven”).

Mae pysgodyn yn y ffwrn.


taradr

terydr (plural)
taradr
daradr (soft)
nharadr
tharadr


cwch

cychod (plural)
cwch
gwch (soft)
nghwch
chwch


tarian

tarianau (plural)
tarian
darian (soft)
nharian
tharian

From Middle Welsh taryan, from Old English targa, from Proto-Germanic *targǭ. Cognate with English target.


bwa

From Middle Welsh bwa, from Middle English bowe, from Old English boga.


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)
mewngofnodedig (participle)
mewngofnodadwy (participle)
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)
allgofnodedig (participle)
allgofnodadwy (participle)
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”).


bonet

boneti (plural)
bonetau (plural)
bonet
fonet (soft)
monet

From Middle French bonet, possibly via Middle English bonet.


efydd

efyddau (plural)
efydd
hefydd (prothesis-h)

From Middle Welsh euyð, from Old Welsh emid, from Proto-Brythonic *öβ̃ɨð, from Proto-Celtic *omiyom. Cognate with Old Irish umae.


rhwyf

From Middle Welsh rwyf, from Proto-Brythonic *rruɨβ̃, from Latin rēmus.


copr

From English copr, from Late Latin cuprum (“copper”), contraction of Latin aes Cyprium (literally “Cyprian brass”), from Ancient Greek Κύπρος (Kúpros, “Cyprus”).


tegell

tegelli (plural)
tegellau (plural)
tegell
degell (soft)
nhegell
thegell

Borrowed from English teakettle (possibly reanalysed as te (“tea”) + cell (“cell”)).


metel

Borrowed from Middle English metal, from Old French metal, from Latin metallum.


gwedd

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


gefail

Cognates include Cornish gelforn (“forge”), Breton govel (“forge”).


gefail

gefeiliau (plural)
gefail
efail (soft)
ngefail

See the etymology of the corresponding lemma form.


sliper

cy-noun

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

slipers (plural)
sliperi (plural)
sliperau (plural)
slipren (diminutive)


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.


uniad

uniadau (plural)
uniad
huniad (prothesis-h)


metelegol

cy-adj

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

metelegol (feminine singular)
metelegol (plural)
mor fetelegol (equative)
mwy metelegol (comparative)
mwyaf metelegol (superlative)
metelegol
fetelegol (soft)

/ˌmɛtɛˈlɛɡɔl/

/ˌmɛtɛˈleːɡɔl/

/ˌmɛtɛˈlɛɡɔl/


rhyngrwyd

rhyngrwydi (plural)
rhyngrwyd
ryngrwyd (soft)

/ˈr̥əŋrʊɨ̯d/

/ˈr̥əŋrʊi̯d/

From rhyng- (“between”) + rhwyd (“net”); calque of English internet.


mỳg

mygau (plural)
mygiau (plural)
mỳg
fỳg (soft)


cof bach

cofion bach (plural)
cof bach
gof bach (soft)
nghof bach
chof bach


cofbin

cofbinnau (plural)
cofbin
gofbin (soft)
nghofbin
chofbin


negesfwrdd

cy-noun

negesfwrdd m (plural negesfyrddau, not mutable)

/nɛˈɡɛsvʊrð/

From neges (“message”) + bwrdd (“board, table”).


band eang

From band (“band”) + eang (“broad, wide”).


teiar

teiars (plural)
teiar
deiar (soft)
nheiar
theiar


microsgop

microsgopau (plural)
microsgop
ficrosgop (soft)


tân gwyllt

tân gwyllt
dân gwyllt (soft)
nhân gwyllt
thân gwyllt

/ˌtaːn ˈɡwɨːɬd/

[ˌtʰaːŋ ˈɡwɨːɬt]

[ˌtʰaːŋ ˈɡwɪɬt]

From tân (“fire”) + gwyllt (“wild”), "wild fire".


hoel

cy-noun

hoel f (plural hoelion or hoelon, not mutable)


uwch-ddeallusrwydd

From uwch- (“super-”) + deallusrwydd (“intelligence”).


morthwyl

morthwylion (plural)
morthwyl
forthwyl (soft)

From Middle Welsh morthwl, from Proto-Brythonic *morθul (compare Breton morzhol), from Vulgar Latin *mortulus, a British Latin variant of Latin martulus (compare martellus).


ceubal

ceubalau (plural)
ceubal
geubal (soft)
ngheubal
cheubal

From Middle Welsh keubal (whence English coble), from Proto-Brythonic *kaubul, from Latin caupulus (“a kind of small boat”).

ceubalfa

a ferry-crossing; place where ferries land or depart


breuan

breuanau (plural)
breuan
freuan (soft)
mreuan

From Middle Welsh breuan, from Proto-Brythonic *brọw, from Proto-Celtic *brāwū, from Proto-Indo-European *gʷreh₂w-on-.


gwayw

gwewyr (plural)
gweywyr (plural)
gwayw
wayw (soft)
ngwayw

From Proto-Celtic *uɸogaisos, a prefixed derivative of *gaisos (“spear”); compare Old Irish gae (modern Irish ga).


stemar

cy-noun

stemar m or f (plural stemars, not mutable)

Toc daw'r stemar bach i'w towio.

Soon the little steamer will come to tow them.


agerlong

agerlongau (plural)
agerlong
hagerlong (prothesis-h)


agerddlong

agerddlongau (plural)
agerddlong
hagerddlong (prothesis-h)

Obsolete form of agerlong (“steamship, steamer”).


blogiwr

blogwyr (plural)
blogiwr
flogiwr (soft)
mlogiwr


blogio

cy-verb

blogio (first-person singular present blogiaf)

blogiaf (first-person present singular)
blogiaf (first-person future indicative present singular)
blogi (future indicative present second-person singular)
blogia (future indicative present singular third-person)
blogiwn (first-person future indicative plural present)
blogiwch (future indicative plural present second-person)
blogiant (future indicative plural present third-person)
blogir (future impersonal indicative present)
blogiwn (conditional first-person singular)
blogiwn (first-person imperfect indicative singular)
blogit (conditional second-person singular)
blogit (imperfect indicative second-person singular)
blogiai (conditional singular third-person)
blogiai (imperfect indicative singular third-person)
blogiem (conditional first-person plural)
blogiem (first-person imperfect indicative plural)
blogiech (conditional plural second-person)
blogiech (imperfect indicative plural second-person)
blogient (conditional plural third-person)
blogient (imperfect indicative plural third-person)
blogid (conditional impersonal)
blogid (imperfect impersonal indicative)
blogiais (first-person preterite singular)
blogiaist (preterite second-person singular)
blogiodd (preterite singular third-person)
blogiasom (first-person plural preterite)
blogiasoch (plural preterite second-person)
blogiasant (plural preterite third-person)
blogiwyd (impersonal preterite)
blogiaswn (first-person pluperfect singular)
blogiasit (pluperfect second-person singular)
blogiasai (pluperfect singular third-person)
blogiasem (first-person pluperfect plural)
blogiasech (pluperfect plural second-person)
blogiasent (pluperfect plural third-person)
blogiasid (impersonal pluperfect)
blogiesid (impersonal pluperfect)
blogiwyf (first-person present singular subjunctive)
blogiech (present second-person singular subjunctive)
blogio (present singular subjunctive third-person)
blogiom (first-person plural present subjunctive)
blogioch (plural present second-person subjunctive)
blogiont (plural present subjunctive third-person)
blogier (impersonal present subjunctive)
blogia (imperative second-person singular)
blogied (imperative singular third-person)
blogiwn (first-person imperative plural)
blogiwch (imperative plural second-person)
blogient (imperative plural third-person)
blogier (imperative impersonal)
blogio (noun-from-verb)
blogiedig (participle)
blogiadwy (participle)
blogia i (first-person future singular)
blogiaf i (first-person future singular)
blogi di (future second-person singular)
blogith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
blogiff e (future singular third-person)
blogiwn ni (first-person future plural)
blogiwch chi (future plural second-person)
blogian nhw (future plural third-person)
blogiwn i (conditional first-person singular)
blogswn i (conditional first-person singular)
blogiet ti (conditional second-person singular)
blogset ti (conditional second-person singular)
blogiai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
blogsai fo (conditional singular third-person)
blogien ni (conditional first-person plural)
blogsen ni (conditional first-person plural)
blogiech chi (conditional plural second-person)
blogsech chi (conditional plural second-person)
blogien nhw (conditional plural third-person)
blogsen nhw (conditional plural third-person)
blogiais i (first-person preterite singular)
blogies i (first-person preterite singular)
blogiaist ti (preterite second-person singular)
blogiest ti (preterite second-person singular)
blogiodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
blogion ni (first-person plural preterite)
blogioch chi (plural preterite second-person)
blogion nhw (plural preterite third-person)
blogia (imperative second-person singular)
blogiwch (imperative plural second-person)
blogio
flogio (soft)
mlogio


argraffwr

argraffwyr (plural)
argraffwr
hargraffwr (prothesis-h)

From argraffu (“to print”) + -wr (agentive suffix).

suffix

printer (person who operates a printing press)


Trydar

From trydar (“twittering, tweeting, chirping”).


Gweplyfr

y Gweplyfr (canonical masculine)
Gweplyfr
Weplyfr (soft)
Ngweplyfr


bwyell

bwyeill (plural)
bwyelli (plural)
bwyell
fwyell (soft)
mwyell

From Middle Welsh bwell, from Old Welsh bahell, from Proto-Celtic *beyatlis, from the root of *binati (“to strike”). Cognate with Breton bouc'hal, Irish biail, Old Irish biáil.


ffliwt

cy-noun

ffliwt f (plural ffliwtiau, not mutable)

Mae hi'n canu'r ffliwt.


rhewgell

rhewgelloedd (plural)
rhewgell
rewgell (soft)


camlas

camlas f (plural camlesi or camlasau or camlesydd)

camlesi (plural)
camlasau (plural)
camlesydd (plural)
camlas
gamlas (soft)
nghamlas
chamlas

cam (“crooked; false”) + glas (“stream”)


gweillen fwyta

gweill bwyta (plural)
gweillen fwyta
weillen fwyta (soft)
ngweillen fwyta

Compound of gwaell (“needle”) + -en (“diminutive ending”) and bwyta (“eating”).

af

Does dim modd codi cwstard â gweill bwyta.

There's no way to pick up custard with chopsticks.


basŵn

baswnau (plural)
basynau (plural)
basŵn
fasŵn (soft)
masŵn

From English bassoon, from French basson, from Italian bassone.


ystaen

Borrowed from Late Latin stagnum, or inherited from Proto-Brythonic *staɨn.


piwter

Inherited from Middle Welsh pewter, from Middle English peutre; the modern form with -iw- has been readjusted after modern English pewter (given that it has /ɪʊ̯/ in Welsh English).
The obsolete form piowter might reflect a dialectal Early Modern English pronunciation such as /ˈpjɔʊ̯tər/.


twca

twceiod (plural)
twca
dwca (soft)
nhwca
thwca


hyperleol

cy-adj

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

hyperleol (feminine singular)
hyperleol (plural)
hyperleol

Calque of English hyperlocal. By surface analysis, hyper- + lleol (“local”).

surface analysis

(chiefly journalism and blogging) hyperlocal


siswrn

cy-noun

siswrn m (plural sisyrnau or siswrnau or siswrns, not mutable)

sisyrnau (plural)
siswrnau (plural)
siswrns (plural)

From Middle Welsh siswrn, from Middle English sisours, from Old French cisoires. The -n is of unclear origin; perhaps the word is from a dialect of Middle English in which the plural suffix -en predominated over -s. At any rate, its use in this Welsh word is paralleled by other loanwords like masarn (“maple”) (from Old French masre), miswrn (“visor”), and pinsiwrn (“pincers”).

(pair of) scissors (tool used for cutting)


offeryn

offerynnau (plural)
offeryn
hofferyn (prothesis-h)


offeryn cerdd

offeryn cerdd m (plural offerynnau cerdd)

offerynnau cerdd (plural)
offeryn cerdd
hofferyn cerdd (prothesis-h)

/ɔˌfɛrɨ̞n ˈkɛrð/

/ɔˌfɛrɨ̞ŋ ˈkɛrð/

/ɔˌfɛrɪn ˈkɛrð/

/ɔˌfeːrɪŋ ˈkɛrð/

/ɔˌfɛrɪŋ ˈkɛrð/


trombôn

trombonau (plural)
trombôn
drombôn (soft)
nhrombôn
thrombôn


ffidil

ffidil f (plural ffidils or ffidilau, not mutable)

rhoi'r ffidil yn y to

to give up; to put the fiddle in the roof


pren mesur

prennau mesur (plural)
pren mesur
bren mesur (soft)
mhren mesur
phren mesur


technegydd

technegydd m (plural technegyddion, feminine technegyddes)

technegyddion (plural)
technegyddes (feminine)
technegydd
dechnegydd (soft)
nhechnegydd
thechnegydd

/tɛχˈnɛɡɨ̞ð/


clustffon

clustffonau (plural)
clustffon
glustffon (soft)
nghlustffon
chlustffon


chwaraewr CD

chwaraewr CD m (plural chwaraewyr CD, not mutable)


sosban

sosban f or m (plural sosbannau or sosbenni or sosbyn or sosbyns, not mutable)

sosbannau (plural)
sosbenni (plural)
sosbyn (plural)
sosbyns (plural)


cwcer

cwcers (plural)
cwcerau (plural)
cwcer
gwcer (soft)
nghwcer
chwcer

cooker (device for heating food, stove; appliance or utensil for cooking)


padell ffrio

padell ffrio f (plural padellau ffrio or padelli ffrio or pedyll ffrio)

padellau ffrio (plural)
padelli ffrio (plural)
pedyll ffrio (plural)
padell ffrio
badell ffrio (soft)
mhadell ffrio
phadell ffrio


darllediad

darllediadau (plural)
darllediad
ddarllediad (soft)
narllediad

broadcast (transmission of a radio or television programme)


caledwedd

caledwedd
galedwedd (soft)
nghaledwedd
chaledwedd


meddalwedd

software (encoded computer instructions)


e-bost

e-bost m (plural e-byst or e-bostiau or e-bostiadau)

e-byst (plural)
e-bostiau (plural)
e-bostiadau (plural)
e-bost
he-bost (prothesis-h)

Partial calque of English e-mail, from English e- + post (“mail”).


ffeil

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

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

(computing) file (aggregation of data on a storage device, identified by a name)


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)
rhaglennedig (participle)
rhaglennadwy (participle)
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)


cas pensiliau

cy-noun

cas pensiliau m (plural casau pensiliau or casiau pensiliau or casys pensiliau)

casau pensiliau (plural)
casiau pensiliau (plural)
casys pensiliau (plural)
cas pensiliau
gas pensiliau (soft)
nghas pensiliau
chas pensiliau


onglydd

onglyddion (plural)
onglydd
honglydd (prothesis-h)

protractor (circular or semicircular tool for measuring angles)


batri

batri m (plural batris or batrïau or batrïoedd)

batris (plural)
batrïau (plural)
batrïoedd (plural)
batri
fatri (soft)
matri

battery (device for storing electricity)


oriawr

oriorau (plural)
oriawr
horiawr (prothesis-h)

From awr + -iawr. A borrowing from Latin hōrārium is unlikely for phonological reasons.


stethosgop

stethosgop m (plural stethosgopau, not mutable)

/ˌsdɛθɔsˈɡɔp/

[ˌstɛθɔsˈkɔpʰ]


gaing

geingiau (plural)
geingion (plural)
gaing
aing (soft)
ngaing


silindr mesur

silindr mesur m (plural silindrau mesur, not mutable)


llosgydd Bunsen

llosgydd Bunsen m (plural llosgyddion Bunsen)

llosgyddion Bunsen (plural)
llosgydd Bunsen
losgydd Bunsen (soft)

/ˌɬɔsɡɨ̞ð ˈbənsən/

[ˌɬɔskɨ̞ð ˈbənsən]

/ˌɬɔsɡɪð ˈbənsən/

[ˌɬɔskɪð ˈbənsən]


newidydd

newidydd m (plural newidyddion, not mutable)

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

af

electrical engineering
electrical engineering

(physics, electrical engineering) transformer


anwythydd

anwythyddion (plural)
anwythydd
hanwythydd (prothesis-h)

/aˈnʊɨ̯θɨ̞ð/

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


gyriant

gyriannau (plural)
gyriant
yriant (soft)
ngyriant


cyfeiriwr

cyfeirwyr (plural)
cyfeiriwr
gyfeiriwr (soft)
nghyfeiriwr
chyfeiriwr


llwybr halio

llwybrau halio (plural)
llwybr halio
lwybr halio (soft)

[ˌɬʊɨ̯br̩ ˈhaljɔ]


cromiwm

cromiwm
gromiwm (soft)
nghromiwm
chromiwm

Borrowed from English chromium, from New Latin, from French chrome, from Ancient Greek χρῶμα (khrôma, “color”).


manganîs

From English manganese, French manganèse, from Italian manganese, by alteration from Latin magnesia (“magnesia”), from Ancient Greek μαγνησία (magnēsía), after Μαγνησία (Magnēsía, “Magnesia”).


agerfad

agerfadau (plural)
agerfad
hagerfad (prothesis-h)


megaffon

megaffonau (plural)
megaffon
fegaffon (soft)

Partial calque of English megaphone. Equivalent to mega- + ffôn.


brêc

breciau (plural)
brêcs (plural)
brêc
frêc (soft)
mrêc


gwyntyll

/ˈɡwɨ̞ntɨ̞ɬ/

Derivative of gwynt (“wind”) with the same suffix found in ffrewyll (“whip”); compare Cornish gwynsell (“fan; winnowing fan”), Breton gwentell (“winnowing fan”).


maleiswedd

malais (“malevolence, malice”) + gwedd (“form”), analogous to caledwedd (“hardware”) and meddalwedd (“software”)


meddalwedd wystlo

meddalwedd wystlo
feddalwedd wystlo (soft)

[mɛˌðalˠwɛð ˈwɨ̞stlˠɔ]

[mɛˌðalˠwɛð ˈwɪstlˠɔ]

meddalwedd (“software”) + gwystlo (“to pledge, to deposit as security for money”) (cf. gwystl (“hostage”))


cadarnwedd

cadarnwedd
gadarnwedd (soft)
nghadarnwedd
chadarnwedd

cadarn (“strong, firm”) + gwedd (“form”), analogous to caledwedd (“hardware”) and meddalwedd (“software”)


ysbïwedd

ysbïo (“to spy”) + gwedd (“form”), analogous to caledwedd (“hardware”) and meddalwedd (“software”)


meddalwedd hysbysebu

meddalwedd hysbysebu
feddalwedd hysbysebu (soft)

/mɛˌðalwɛð ˌhəsbəˈsɛbɨ̞/

[mɛˌðalˠwɛð ˌhəspəˈsɛbɨ̞]

meddalwedd (“software”) + hysbysebu (“to advertise”)


lorri

cy-noun

lorri f (plural lorïau or lorris, not mutable)

Rowlidd lorri Lowri lawr y lôn.
Lowri’s lorry rolled down the lane.


beic modur

beiciau modur (plural)
beic modur
feic modur (soft)
meic modur


adwy

adwyon (plural)
adwyau (plural)
adwy
hadwy (prothesis-h)

Cognate with Breton ode and Cornish aswy.

dod i'r adwy

to step into the breach, to come to the rescue


cwymplen

cwymplenni (plural)
cwymplen
gwymplen (soft)
nghwymplen
chwymplen


naidlen

naidlen f (plural naidlennni, not mutable)


dewislen

dewislenni (plural)
dewislen
ddewislen (soft)
newislen


cymhwysiad

cymwysiadau (plural)
cymhwysiad
gymhwysiad (soft)
nghymhwysiad
chymhwysiad

From cymhwyso (“to adapt, to adjust, to qualify”) + -iad (noun-forming suffix).

cymwys

suitable, appropriate; qualified, eligible


tyndro

tyndroeon (plural)
tyndro
dyndro (soft)
nhyndro
thyndro


trensiwr

cy-noun

trensiwr m (plural trensiwrau or trensiyrnau)

trensiwrau (plural)
trensiyrnau (plural)
trensiwr
drensiwr (soft)
nhrensiwr
thrensiwr

Borrowed from Middle English trenchour, from Anglo-Norman trenchour.


disg

(computer hardware) Ellipsis of disg caled (“hard disk”).

disk
Ellipsis of disg caled (“hard disk”).

(computer hardware) Ellipsis of disg hyblyg (“floppy disk”).


gwasg

gwasg f (plural gwasgau or gwasgoedd or gweisg)

gwasgau (plural)
gwasgoedd (plural)
gweisg (plural)
gwasg
wasg (soft)
ngwasg

From Proto-Celtic *wedsk-, from Proto-Indo-European *wedʰ- (“to lead, thrust, urge, press”). Cognate with Irish fáisc.


sgrin wynt

cy-noun

sgrin wynt f (plural sgriniau gwynt, not mutable)


cludwely

cludwelyau (plural)
cludwely
gludwely (soft)
nghludwely
chludwely

stretcher, litter (platform for carrying a person)


ystaenwydr

/ˌəstaɨ̯nˈwɨ̞dɨ̞r/


erblith

erblithion (plural)
erblith
herblith (prothesis-h)


cawell

cawell m (plural cewyll or cawellau or cawelli)

cewyll (plural)
cawellau (plural)
cawelli (plural)
cawell
gawell (soft)
nghawell
chawell


fflasg

fflasg f (plural fflasgiau, not mutable)


nanoraddfa

cy-adj

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

nanoraddfa (feminine singular)
nanoraddfa (plural)


nanoraddfa

cy-noun

nanoraddfa f (plural nanoraddfeydd, not mutable)

(sciences, technology) nanoscale (measuring tool with gradations in nanometers)

(sciences, technology) the scale of nanotechnology


ysgudell

Inherited from Proto-Brythonic *skudell, a borrowing from Latin scutella. Doublet of sgytl, a borrowing of English scuttle.


rholbren

rholbren m (plural rholbrenni or rholbrennau)

rholbrenni (plural)
rholbrennau (plural)
rholbren
rolbren (soft)


ffôn tŷ

ffôn tŷ m (plural ffonau tŷ or ffonau tai, not mutable)

ffonau tŷ (plural)
ffonau tai (plural)
ffôn tŷ


chwiliwr

chwiliwr m (plural chwilwyr, not mutable)


chwiliwr Hall

chwiliwr Hall m (plural chwilwyr Hall, not mutable)

chwiliwr (“probe”) + named after American physicist Edwin Herbert Hall (1855–1938).


chwiliedydd

cy-noun

chwiliedydd m (plural chwiliedyddion, not mutable)

/χwɪlˈjɛdɨ̞ð/

/χwɪlˈjɛdɪð/


chwiliedydd Hall

chwiliedydd Hall m (plural chwiliedyddion Hall, not mutable)

chwiliedydd (“probe”) + named after American physicist Edwin Herbert Hall (1855–1938).


chwiliedydd fflam

chwiliedydd fflam m (plural chwiliedyddion fflam, not mutable)


cynlluniwr siwrnai

cynlluniwr siwrnai m (plural cynllunwyr siwrnai)


bach clo

bachau cloeon (plural)
bach clo
fach clo (soft)
mach clo


cleddyf cam

cleddyfau cam (plural)
cleddyf cam
gleddyf cam (soft)
nghleddyf cam
chleddyf cam


arian nitrad

(inorganic chemistry) silver nitrate, AgNO₃


osgled

osgledau (plural)
osgled
hosgled (prothesis-h)

osg (“sloping object”) + lled (“width”).


chwibanogl

chwibanogl f (plural chwibanoglau or chwibenygl, not mutable)

chwibanoglau (plural)
chwibenygl (plural)

From chwibanog (“whistling”) + -l (“instrument suffix”).


deallusrwydd artiffisial

cy-noun

deallusrwydd artiffisial m (uncountable)

deallusrwydd artiffisial
ddeallusrwydd artiffisial (soft)
neallusrwydd artiffisial

artificial intelligence
artificial intelligence


manganad

Borrowed from English manganate. By surface analysis, mangan- (“mangan-”) + -ad (“-ate”).


gwlw

gylfau (plural)
gylfon (plural)
gwlw
wlw (soft)
ngwlw


rhewgist

rhewgistiau (plural)
rhewgist
rewgist (soft)


hashnod

cy-noun

hashnod m (plural hashnodau, not mutable)

Hyrwyddo'r ymgyrch drwy eich cyfrifon cymdeithasol eich hunain gan ddefnyddio'r hashnod.

c. 2020, Denbighshire County Council, “Caru Busnesau Lleol”, in denbighshire.gov.uk:

Promote the campaign through your own social accounts using the hashtag.

Gwahodd lleoliadau celfyddydol i ymuno ag ymgyrch #hashnod
Gwahoddir lleoliadau celfyddydol sy'n bwriadu ailagor i ddefnyddio'r hashnodau #celfaragor neu #artsareopen

2021 May 26, Arts Council of Wales, “Our News”, in arts.wales, retrieved 2024-06-16:

Invite arts venues to join the #hashtag campaign
Arts venues planning to reopen are invited to use the hashtags #celfaragor or #artsareopen

hashtag (a metadata tag used to label content)


tor diogelwch data

tor diogelwch data m (plural toriadau diogelwch data)

Gall toriadau diogelwch data effeithio'n andwyol ar hyder y cyhoedd.

Data breaches can adversely affect public confidence.


bom amser

bomiau amser (plural)
bom amser
fom amser (soft)
mom amser


bollt

bolltau (plural)
bolltiau (plural)
bollt
follt (soft)
mollt


hoelbren

hoelbren m or f (plural hoelbrennau, not mutable)


uniad meitr

uniadau meitr (plural)
uniad meitr
huniad meitr (prothesis-h)


uniad meitrog

uniad meitrog m (plural uniadau meitrog)

uniadau meitrog (plural)
uniad meitrog
huniad meitrog (prothesis-h)


meitrog

cy-adj

meitrog (feminine singular meitrog, plural meitrogion, not comparable)

meitrog (feminine singular)
meitrogion (plural)
meitrog
feitrog (soft)


sgaffald

cy-noun

sgaffald m (plural sgaffaldau or sgaffaldiau, not mutable)

sgaffaldau (plural)
sgaffaldiau (plural)


uniad hanerog

uniad hanerog m (plural uniadau hanerog)

uniadau hanerog (plural)
uniad hanerog
huniad hanerog (prothesis-h)


uniad haneru

uniadau haneru (plural)
uniad haneru
huniad haneru (prothesis-h)


uniad cynffonnog

uniad cynffonnog m (plural uniadau cynffonnog)

uniadau cynffonnog (plural)
uniad cynffonnog
huniad cynffonnog (prothesis-h)


uniad hoelbren

uniad hoelbren m (plural uniadau hoelbren)

uniadau hoelbren (plural)
uniad hoelbren
huniad hoelbren (prothesis-h)


uniad bôn

uniadau bôn (plural)
uniad bôn
huniad bôn (prothesis-h)


uniad ffrâm

uniadau ffrâm (plural)
uniad ffrâm
huniad ffrâm (prothesis-h)


uniad bagl

uniadau bagl (plural)
uniad bagl
huniad bagl (prothesis-h)

uniad (“joint”) + bagl (“crook, crutch”).


uniad rhigol

uniadau rhigol (plural)
uniad rhigol
huniad rhigol (prothesis-h)


uniad tafod a rhigol

uniad tafod a rhigol m (plural uniadau tafod a rhigol)

uniadau tafod a rhigol (plural)
uniad tafod a rhigol
huniad tafod a rhigol (prothesis-h)

uniad (“joint”) + tafod (“tongue”) + rhigol (“groove”).

tongue and groove joint
tongue and groove joint


uniad tafod a rhych

uniad tafod a rhych m (plural uniadau tafod a rhych)

uniadau tafod a rhych (plural)
uniad tafod a rhych
huniad tafod a rhych (prothesis-h)

uniad (“joint”) + tafod (“tongue”) + rhych (“groove”).


uniad mortais a thyno

uniad mortais a thyno m (plural uniadau mortais a thyno)

uniadau mortais a thyno (plural)
uniad mortais a thyno
huniad mortais a thyno (prothesis-h)

uniad (“joint”) + mortais (“mortise”) + tyno (“tenon”).

mortise and tenon joint
mortise and tenon joint


metel alcalïaidd

metel alcalïaidd m (plural metelau alcalïaidd)

metelau alcalïaidd (plural)
metel alcalïaidd
fetel alcalïaidd (soft)


datgywasgu

cy-verb

datgywasgu (first-person singular present datgywasgaf)

datgywasgaf (first-person present singular)
datywasgaf (first-person future indicative present singular)
datywesgi (future indicative present second-person singular)
datywasga (future indicative present singular third-person)
datywasgwn (first-person future indicative plural present)
datywesgwch (future indicative plural present second-person)
datywasgwch (future indicative plural present second-person)
datywasgant (future indicative plural present third-person)
datywesgir (future impersonal indicative present)
datywasgwn (conditional first-person singular)
datywasgwn (first-person imperfect indicative singular subjunctive)
datywasgit (conditional second-person singular)
datywasgit (imperfect indicative second-person singular subjunctive)
datywasgai (conditional singular third-person)
datywasgai (imperfect indicative singular subjunctive third-person)
datywasgem (conditional first-person plural)
datywasgem (first-person imperfect indicative plural subjunctive)
datywasgech (conditional plural second-person)
datywasgech (imperfect indicative plural second-person subjunctive)
datywasgent (conditional plural third-person)
datywasgent (imperfect indicative plural subjunctive third-person)
datywesgid (conditional impersonal)
datywesgid (imperfect impersonal indicative subjunctive)
datywesgais (first-person preterite singular)
datywesgaist (preterite second-person singular)
datywasgodd (preterite singular third-person)
datywasgasom (first-person plural preterite)
datywasgasoch (plural preterite second-person)
datywasgasant (plural preterite third-person)
datywasgwyd (impersonal preterite)
datywasgaswn (first-person pluperfect singular)
datywasgasit (pluperfect second-person singular)
datywasgasai (pluperfect singular third-person)
datywasgasem (first-person pluperfect plural)
datywasgasech (pluperfect plural second-person)
datywasgasent (pluperfect plural third-person)
datywasgasid (impersonal pluperfect)
datywasgesid (impersonal pluperfect)
datywasgwyf (first-person present singular subjunctive)
datywesgych (present second-person singular subjunctive)
datywasgo (present singular subjunctive third-person)
datywasgom (first-person plural present subjunctive)
datywasgoch (plural present second-person subjunctive)
datywasgont (plural present subjunctive third-person)
datywasger (impersonal present subjunctive)
datywasga (imperative second-person singular)
datywasged (imperative singular third-person)
datywasgwn (first-person imperative plural)
datywesgwch (imperative plural second-person)
datywasgwch (imperative plural second-person)
datywasgent (imperative plural third-person)
datywasger (imperative impersonal)
datgywasgu (noun-from-verb)
datywasgedig (participle)
datywasgadwy (participle)
datywasga i (first-person future singular)
datywasgaf i (first-person future singular)
datywasgi di (future second-person singular)
datywasgith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
datywasgiff e (future singular third-person)
datywasgwn ni (first-person future plural)
datywasgwch chi (future plural second-person)
datywasgan nhw (future plural third-person)
datywasgwn i (conditional first-person singular)
datywasgswn i (conditional first-person singular)
datywasget ti (conditional second-person singular)
datywasgset ti (conditional second-person singular)
datywasgai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
datywasgsai fo (conditional singular third-person)
datywasgen ni (conditional first-person plural)
datywasgsen ni (conditional first-person plural)
datywasgech chi (conditional plural second-person)
datywasgsech chi (conditional plural second-person)
datywasgen nhw (conditional plural third-person)
datywasgsen nhw (conditional plural third-person)
datywasgais i (first-person preterite singular)
datywasges i (first-person preterite singular)
datywasgaist ti (preterite second-person singular)
datywasgest ti (preterite second-person singular)
datywasgodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
datywasgon ni (first-person plural preterite)
datywasgoch chi (plural preterite second-person)
datywasgon nhw (plural preterite third-person)
datywasga (imperative second-person singular)
datywasgwch (imperative plural second-person)
datgywasgu
ddatgywasgu (soft)
natgywasgu

From dat- (“de-”) + cywasgu (“to compress”).

(computing) to decompress (to restore compressed data)


fectoru

fectoru (first-person singular present fectoraf, not mutable)

fectoraf (first-person present singular)
fectoraf (first-person future indicative present singular)
fectori (future indicative present second-person singular)
fectora (future indicative present singular third-person)
fectorwn (first-person future indicative plural present)
fectorwch (future indicative plural present second-person)
fectorant (future indicative plural present third-person)
fectorir (future impersonal indicative present)
fectorwn (conditional first-person singular)
fectorwn (first-person imperfect indicative singular subjunctive)
fectorit (conditional second-person singular)
fectorit (imperfect indicative second-person singular subjunctive)
fectorai (conditional singular third-person)
fectorai (imperfect indicative singular subjunctive third-person)
fectorem (conditional first-person plural)
fectorem (first-person imperfect indicative plural subjunctive)
fectorech (conditional plural second-person)
fectorech (imperfect indicative plural second-person subjunctive)
fectorent (conditional plural third-person)
fectorent (imperfect indicative plural subjunctive third-person)
fectorid (conditional impersonal)
fectorid (imperfect impersonal indicative subjunctive)
fectorais (first-person preterite singular)
fectoraist (preterite second-person singular)
fectorodd (preterite singular third-person)
fectorasom (first-person plural preterite)
fectorasoch (plural preterite second-person)
fectorasant (plural preterite third-person)
fectorwyd (impersonal preterite)
fectoraswn (first-person pluperfect singular)
fectorasit (pluperfect second-person singular)
fectorasai (pluperfect singular third-person)
fectorasem (first-person pluperfect plural)
fectorasech (pluperfect plural second-person)
fectorasent (pluperfect plural third-person)
fectorasid (impersonal pluperfect)
fectoresid (impersonal pluperfect)
fectorwyf (first-person present singular subjunctive)
fectorych (present second-person singular subjunctive)
fectoro (present singular subjunctive third-person)
fectorom (first-person plural present subjunctive)
fectoroch (plural present second-person subjunctive)
fectoront (plural present subjunctive third-person)
fectorer (impersonal present subjunctive)
fectora (imperative second-person singular)
fectored (imperative singular third-person)
fectorwn (first-person imperative plural)
fectorwch (imperative plural second-person)
fectorent (imperative plural third-person)
fectorer (imperative impersonal)
fectoru (noun-from-verb)
fectoredig (participle)
fectora i (first-person future singular)
fectoraf i (first-person future singular)
fectori di (future second-person singular)
fectorith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
fectoriff e (future singular third-person)
fectorwn ni (first-person future plural)
fectorwch chi (future plural second-person)
fectoran nhw (future plural third-person)
fectorwn i (conditional first-person singular)
fectorswn i (conditional first-person singular)
fectoret ti (conditional second-person singular)
fectorset ti (conditional second-person singular)
fectorai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
fectorsai fo (conditional singular third-person)
fectoren ni (conditional first-person plural)
fectorsen ni (conditional first-person plural)
fectorech chi (conditional plural second-person)
fectorsech chi (conditional plural second-person)
fectoren nhw (conditional plural third-person)
fectorsen nhw (conditional plural third-person)
fectorais i (first-person preterite singular)
fectores i (first-person preterite singular)
fectoraist ti (preterite second-person singular)
fectorest ti (preterite second-person singular)
fectorodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
fectoron ni (first-person plural preterite)
fectoroch chi (plural preterite second-person)
fectoron nhw (plural preterite third-person)
fectora (imperative second-person singular)
fectorwch (imperative plural second-person)
fectoru


graffigol

cy-adj

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

graffigol (feminine singular)
graffigol (plural)
graffigol
raffigol (soft)
ngraffigol

Adapted from English graphical. By surface analysis, graffig (“graphic”) + -ol.


echreiddiad

echreiddiadau (plural)
echreiddiad
hechreiddiad (prothesis-h)

From ech- (“ex-”) + craidd (“centre, middle”) + -iad.


echreiddig

cy-adj

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

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

From ech- (“ex-”) + craidd (“centre, middle”) + -ig.


echreiddig

echreiddigau (plural)
echreiddig
hechreiddig (prothesis-h)


llinellydd

llinellyddion (plural)
llinellydd
linellydd (soft)


ecsentrig

cy-adj

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

ecsentrig (feminine singular)
ecsentrig (plural)
mor ecsentrig (equative)
mwy ecsentrig (comparative)
mwyaf ecsentrig (superlative)
ecsentrig
hecsentrig (prothesis-h)


isorsaf

isorsafoedd (plural)
isorsaf
hisorsaf (prothesis-h)

(electrical engineering) electrical substation


newidydd codi

cy-noun

newidydd codi m (plural newidyddion codi, not mutable)

(physics, electrical engineering) step-up transformer


newidydd gostwng

newidydd gostwng m (plural newidyddion gostwng, not mutable)

step-down transformer
step-down transformer

(physics, electrical engineering) step-down transformer


gwenynllestr

gwenynllestri (plural)
gwenynllestr
wenynllestr (soft)
ngwenynllestr

From gwenyn (“bees”) + llestr (“vessel”).


allanu

cy-verb

allanu (first-person singular present allanaf)


ffwythiant

cy-noun

ffwythiant m (plural ffwythiannau, not mutable)

Learned borrowing from Latin fūnctiō + -iant, with the conceit of applying sound changes that affected Latin loans inherited by Welsh from Common Brittonic.

af

Learned borrowing from Latin <i class="Latn mention" lang="la">fūnctiō</i>


llorp

cy-noun

llorp f (plural llorpiau or llorpau, diminutive llorpen or llorpyn)

llorpiau (plural)
llorpau (plural)
llorpen (diminutive)
llorpyn (diminutive)
llorp
lorp (soft)

(carpentry) rail, stringer or stile of a ladder (one of the vertical components supporting the rungs)


jwg

jwg m (plural jygiau or jwgiau, not mutable)


adweithydd niwclear

adweithydd niwclear m (plural adweithyddion niwclear)

adweithyddion niwclear (plural)
adweithydd niwclear
hadweithydd niwclear (prothesis-h)


gorsaf bŵer niwclear

gorsaf bŵer niwclear f (plural gorsafoedd pŵer niwclear)

nuclear power station
nuclear power station

nuclear power station, nuclear power plant


priflamp

priflampau (plural)
priflamp
briflamp (soft)
mhriflamp
phriflamp


lamp fawr

lamp fawr f (plural lampau mawr, not mutable)


golau blaen

Coordinate term: golau ôl


golau ôl

Coordinate term: golau blaen


disg hyblyg

disgiau hyblyg (plural)
disg hyblyg
ddisg hyblyg (soft)
nisg hyblyg


disg caled

disgiau caled (plural)
disg caled
ddisg caled (soft)
nisg caled


disgyrrwr

disgyrwyr (plural)
disgyrrwr
ddisgyrrwr (soft)
nisgyrrwr

Calque of English disk drive. By surface analysis, disg (“disk”) + gyrrwr (“driver”).


disg llipa

disgiau llipa (plural)
disg llipa
ddisg llipa (soft)
nisg llipa


digideiddio

cy-verb

digideiddio (first-person singular present digideiddioaf)

digideiddioaf (first-person present singular)
digideiddiaf (first-person future indicative present singular)
digideiddi (future indicative present second-person singular)
digideiddia (future indicative present singular third-person)
digideiddiwn (first-person future indicative plural present)
digideiddiwch (future indicative plural present second-person)
digideiddiant (future indicative plural present third-person)
digideiddir (future impersonal indicative present)
digideiddiwn (conditional first-person singular)
digideiddiwn (first-person imperfect indicative singular)
digideiddit (conditional second-person singular)
digideiddit (imperfect indicative second-person singular)
digideiddiai (conditional singular third-person)
digideiddiai (imperfect indicative singular third-person)
digideiddiem (conditional first-person plural)
digideiddiem (first-person imperfect indicative plural)
digideiddiech (conditional plural second-person)
digideiddiech (imperfect indicative plural second-person)
digideiddient (conditional plural third-person)
digideiddient (imperfect indicative plural third-person)
digideiddid (conditional impersonal)
digideiddid (imperfect impersonal indicative)
digideiddiais (first-person preterite singular)
digideiddiaist (preterite second-person singular)
digideiddiodd (preterite singular third-person)
digideiddiasom (first-person plural preterite)
digideiddiasoch (plural preterite second-person)
digideiddiasant (plural preterite third-person)
digideiddiwyd (impersonal preterite)
digideiddiaswn (first-person pluperfect singular)
digideiddiasit (pluperfect second-person singular)
digideiddiasai (pluperfect singular third-person)
digideiddiasem (first-person pluperfect plural)
digideiddiasech (pluperfect plural second-person)
digideiddiasent (pluperfect plural third-person)
digideiddiasid (impersonal pluperfect)
digideiddiesid (impersonal pluperfect)
digideiddiwyf (first-person present singular subjunctive)
digideiddiech (present second-person singular subjunctive)
digideiddio (present singular subjunctive third-person)
digideiddiom (first-person plural present subjunctive)
digideiddioch (plural present second-person subjunctive)
digideiddiont (plural present subjunctive third-person)
digideiddier (impersonal present subjunctive)
digideiddia (imperative second-person singular)
digideiddied (imperative singular third-person)
digideiddiwn (first-person imperative plural)
digideiddiwch (imperative plural second-person)
digideiddient (imperative plural third-person)
digideiddier (imperative impersonal)
digideiddio (noun-from-verb)
digideiddiedig (participle)
digideiddiadwy (participle)
digideiddia i (first-person future singular)
digideiddiaf i (first-person future singular)
digideiddi di (future second-person singular)
digideiddith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
digideiddiff e (future singular third-person)
digideiddiwn ni (first-person future plural)
digideiddiwch chi (future plural second-person)
digideiddian nhw (future plural third-person)
digideiddiwn i (conditional first-person singular)
digideiddswn i (conditional first-person singular)
digideiddiet ti (conditional second-person singular)
digideiddset ti (conditional second-person singular)
digideiddiai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
digideiddsai fo (conditional singular third-person)
digideiddien ni (conditional first-person plural)
digideiddsen ni (conditional first-person plural)
digideiddiech chi (conditional plural second-person)
digideiddsech chi (conditional plural second-person)
digideiddien nhw (conditional plural third-person)
digideiddsen nhw (conditional plural third-person)
digideiddiais i (first-person preterite singular)
digideiddies i (first-person preterite singular)
digideiddiaist ti (preterite second-person singular)
digideiddiest ti (preterite second-person singular)
digideiddiodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
digideiddion ni (first-person plural preterite)
digideiddioch chi (plural preterite second-person)
digideiddion nhw (plural preterite third-person)
digideiddia (imperative second-person singular)
digideiddiwch (imperative plural second-person)
digideiddio
ddigideiddio (soft)
nigideiddio

/dɪɡɪˈdei̯ðjɔ/

Mae cerddoriaeth Recordiau Sain, label recordio annibynnol hyna'r wlad, yn digideiddio'u hôl-gatalog ac yn ailddychmygu eu stiwdios gwreiddiol yn Llandwrog yn sgil prosiect newydd.

Sain Recordings, the country's oldest independent recording label, are digitising their back catalog and reimagining their original studios in Llandwrog in a new project style.


seiffon

cy-noun

seiffon m (plural seiffonau, not mutable)

From English siphon, ultimately from Ancient Greek σίφων (síphōn, “pipe, tube”).


pibau'r medelwr

pibau'r medelwr
bibau'r medelwr (soft)
mhibau'r medelwr
phibau'r medelwr