clafychu

cy-verb

clafychu (first-person singular present clafychaf)

clafychaf (first-person present singular)
clafychaf (first-person future indicative present singular)
clafychi (future indicative present second-person singular)
clafycha (future indicative present singular third-person)
clafychwn (first-person future indicative plural present)
clafychwch (future indicative plural present second-person)
clafychant (future indicative plural present third-person)
clafychir (future impersonal indicative present)
clafychwn (conditional first-person singular)
clafychwn (first-person imperfect indicative singular subjunctive)
clafychit (conditional second-person singular)
clafychit (imperfect indicative second-person singular subjunctive)
clafychai (conditional singular third-person)
clafychai (imperfect indicative singular subjunctive third-person)
clafychem (conditional first-person plural)
clafychem (first-person imperfect indicative plural subjunctive)
clafychech (conditional plural second-person)
clafychech (imperfect indicative plural second-person subjunctive)
clafychent (conditional plural third-person)
clafychent (imperfect indicative plural subjunctive third-person)
clafychid (conditional impersonal)
clafychid (imperfect impersonal indicative subjunctive)
clafychais (first-person preterite singular)
clafychaist (preterite second-person singular)
clafychodd (preterite singular third-person)
clafychasom (first-person plural preterite)
clafychasoch (plural preterite second-person)
clafychasant (plural preterite third-person)
clafychwyd (impersonal preterite)
clafychaswn (first-person pluperfect singular)
clafychasit (pluperfect second-person singular)
clafychasai (pluperfect singular third-person)
clafychasem (first-person pluperfect plural)
clafychasech (pluperfect plural second-person)
clafychasent (pluperfect plural third-person)
clafychasid (impersonal pluperfect)
clafychesid (impersonal pluperfect)
clafychwyf (first-person present singular subjunctive)
clafychych (present second-person singular subjunctive)
clafycho (present singular subjunctive third-person)
clafychom (first-person plural present subjunctive)
clafychoch (plural present second-person subjunctive)
clafychont (plural present subjunctive third-person)
clafycher (impersonal present subjunctive)
clafycha (imperative second-person singular)
clafyched (imperative singular third-person)
clafychwn (first-person imperative plural)
clafychwch (imperative plural second-person)
clafychent (imperative plural third-person)
clafycher (imperative impersonal)
clafychu (noun-from-verb singular)
clafychedig (participle singular)
clafychadwy (participle singular)
clafycha i (first-person future singular)
clafychaf i (first-person future singular)
clafychi di (future second-person singular)
clafychith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
clafychiff e (future singular third-person)
clafychwn ni (first-person future plural)
clafychwch chi (future plural second-person)
clafychan nhw (future plural third-person)
clafychwn i (conditional first-person singular)
clafychswn i (conditional first-person singular)
clafychet ti (conditional second-person singular)
clafychset ti (conditional second-person singular)
clafychai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
clafychsai fo (conditional singular third-person)
clafychen ni (conditional first-person plural)
clafychsen ni (conditional first-person plural)
clafychech chi (conditional plural second-person)
clafychsech chi (conditional plural second-person)
clafychen nhw (conditional plural third-person)
clafychsen nhw (conditional plural third-person)
clafychais i (first-person preterite singular)
clafyches i (first-person preterite singular)
clafychaist ti (preterite second-person singular)
clafychest ti (preterite second-person singular)
clafychodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
clafychon ni (first-person plural preterite)
clafychoch chi (plural preterite second-person)
clafychon nhw (plural preterite third-person)
clafycha (imperative second-person singular)
clafychwch (imperative plural second-person)
clafychu
glafychu (soft)
nghlafychu
chlafychu
clefychu (alternative)

(intransitive, weather) to become overcast


dargludiad

dargludiad
ddargludiad (soft)
nargludiad

(physics) conduction (of electricity, heat, light or sound)


dargludol

cy-adj

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

dargludol (feminine singular)
dargludol (plural)
mor ddargludol (equative)
mwy dargludol (comparative)
mwyaf dargludol (superlative)
dargludol
ddargludol (soft)
nargludol

(physics) conductive, conducting (of electricity, heat, light or sound)


dargludedd

dargludedd
ddargludedd (soft)
nargludedd

(physics) conductivity (of electricity, heat, light or sound)


dargludiant

dargludiant
ddargludiant (soft)
nargludiant

(physics) conductance (of electricity, heat, light or sound)


Pegwn y De

Pegwn y De
Begwn y De (soft)
Mhegwn y De
Phegwn y De
Pegwyn y Deau (alternative)


Pegwn y Gogledd

Pegwn y Gogledd
Begwn y Gogledd (soft)
Mhegwn y Gogledd
Phegwn y Gogledd


Môr y De

Môr y De
Fôr y De (soft)
Môr y Deau (alternative)


amldonfedd

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

amldonfedd (feminine singular)
amldonfedd (plural)
amldonfedd
hamldonfedd (prothesis-h)

aml- (“multi-”) + tonfedd (“wavelength”).

af

Model amldonfedd i ddelweddu a dadansoddi meysydd magnetig yng nghorona’r Haul

2014 September 18, Jeff Smith, Gwerddon:

A multiwavelength model to image and analyse magnetic fields in the Sun's corona


deurywiol

cy-adj

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

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

(biology) hermaphrodite, hermaphroditic
(botany) bisexual


cyfansawdd

cy-noun

cyfansawdd m (plural cyfansoddion or cyfansoddiau or cyfansawddau)

cyfansoddion (plural)
cyfansoddiau (plural)
cyfansawddau (plural)

compound, composite
(chemistry) compound


gorddirlawn

cy-adj

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

gorddirlawn (feminine singular)
gorddirlawn (plural)
mor orddirlawn (equative)
mwy gorddirlawn (comparative)
mwyaf gorddirlawn (superlative)
gorddirlawn
orddirlawn (soft)
ngorddirlawn

gor- (“too, very”) + dirlawn (“saturated”).


gordrwythedig

cy-adj

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

gordrwythedig (feminine singular)
gordrwythedig (plural)
mor ordrwythedig (equative)
mwy gordrwythedig (comparative)
mwyaf gordrwythedig (superlative)
gordrwythedig
ordrwythedig (soft)
ngordrwythedig

/ɡɔrdrʊɨ̯ˈθɛdɪɡ/

/ɡɔrdrʊi̯ˈθeːdɪɡ/

/ɡɔrdrʊi̯ˈθɛdɪɡ/

gor- (“too, very”) + trwythedig (“saturated”).


cofalent

cy-adj

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

cofalent (feminine singular)
cofalent (plural)
cyfalent (alternative)

Internationalism.
Borrowed from English covalent.


ïonig

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

ïonig (feminine singular)
ïonig (plural)
iönig (alternative)

Internationalism
borrowed from English ionic. By surface analysis, ïon (“ion”) + -ig.


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


trylediad

trylediad
drylediad (soft)
nhrylediad
thrylediad


tryledu

cy-verb

tryledu (first-person singular present tryledaf)

tryledaf (first-person present singular)
tryledaf (first-person future indicative present singular)
tryledi (future indicative present second-person singular)
tryled (future indicative present singular third-person)
tryleda (future indicative present singular third-person)
tryledwn (first-person future indicative plural present)
tryledwch (future indicative plural present second-person)
tryledant (future indicative plural present third-person)
tryledir (future impersonal indicative present)
tryledwn (conditional first-person singular)
tryledwn (first-person imperfect indicative singular subjunctive)
tryledit (conditional second-person singular)
tryledit (imperfect indicative second-person singular subjunctive)
tryledai (conditional singular third-person)
tryledai (imperfect indicative singular subjunctive third-person)
tryledem (conditional first-person plural)
tryledem (first-person imperfect indicative plural subjunctive)
tryledech (conditional plural second-person)
tryledech (imperfect indicative plural second-person subjunctive)
tryledent (conditional plural third-person)
tryledent (imperfect indicative plural subjunctive third-person)
tryledid (conditional impersonal)
tryledid (imperfect impersonal indicative subjunctive)
tryledais (first-person preterite singular)
tryledaist (preterite second-person singular)
tryledodd (preterite singular third-person)
tryledasom (first-person plural preterite)
tryledasoch (plural preterite second-person)
tryledasant (plural preterite third-person)
tryledwyd (impersonal preterite)
tryledaswn (first-person pluperfect singular)
tryledasit (pluperfect second-person singular)
tryledasai (pluperfect singular third-person)
tryledasem (first-person pluperfect plural)
tryledasech (pluperfect plural second-person)
tryledasent (pluperfect plural third-person)
tryledasid (impersonal pluperfect)
tryledesid (impersonal pluperfect)
tryledwyf (first-person present singular subjunctive)
tryledych (present second-person singular subjunctive)
tryledo (present singular subjunctive third-person)
tryledom (first-person plural present subjunctive)
tryledoch (plural present second-person subjunctive)
tryledont (plural present subjunctive third-person)
tryleder (impersonal present subjunctive)
tryled (imperative second-person singular)
tryleda (imperative second-person singular)
tryleded (imperative singular third-person)
tryledwn (first-person imperative plural)
tryledwch (imperative plural second-person)
tryledent (imperative plural third-person)
tryleder (imperative impersonal)
tryledu (noun-from-verb singular)
trylededig (participle singular)
tryledadwy (participle singular)
tryleda i (first-person future singular)
tryledaf i (first-person future singular)
tryledi di (future second-person singular)
tryledith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
trylediff e (future singular third-person)
tryledwn ni (first-person future plural)
tryledwch chi (future plural second-person)
tryledan nhw (future plural third-person)
tryledwn i (conditional first-person singular)
tryledswn i (conditional first-person singular)
tryledet ti (conditional second-person singular)
tryledset ti (conditional second-person singular)
tryledai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
tryledsai fo (conditional singular third-person)
tryleden ni (conditional first-person plural)
tryledsen ni (conditional first-person plural)
tryledech chi (conditional plural second-person)
tryledsech chi (conditional plural second-person)
tryleden nhw (conditional plural third-person)
tryledsen nhw (conditional plural third-person)
tryledais i (first-person preterite singular)
tryledes i (first-person preterite singular)
tryledaist ti (preterite second-person singular)
tryledest ti (preterite second-person singular)
tryledodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
tryledon ni (first-person plural preterite)
tryledoch chi (plural preterite second-person)
tryledon nhw (plural preterite third-person)
tryleda (imperative second-person singular)
tryledwch (imperative plural second-person)
tryledu
dryledu (soft)
nhryledu
thryledu

try- (“through-”) + lledu (“to spread, to broaden”)


diffreithio

cy-verb

diffreithio (first-person singular present diffeithiaf)

diffeithiaf (first-person present singular)
diffreithio
ddiffreithio (soft)
niffreithio


diffreithiant

diffreithiant
ddiffreithiant (soft)
niffreithiant

From diffreithio (“to diffract”) + -ant.


berog

cy-adj

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


tabl cyfnodol

tabl cyfnodol
dabl cyfnodol (soft)
nhabl cyfnodol
thabl cyfnodol


Siriws

Borrowed from English Sirius from Latin Sīrius, from Ancient Greek Σείριος (Seírios).


Seren y Ci

R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “Seren y Ci”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies


Seren y Cŵn

R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “Seren y Cŵn”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies

(astronomy) alternative form of Seren y Ci (“the Dog Star”)


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]


cyhydedd

cy-noun

cyhydedd m or f (plural cyhydeddau or cyhydeddion)

cyhydeddau (plural)
cyhydeddion (plural)
cyhydedd
gyhydedd (soft)
nghyhydedd
chyhydedd


radical rhydd

radical rhydd m (uncountable, not mutable)


cribell

cribellau (plural)
cribell
gribell (soft)
nghribell
chribell

especially yellow rattle (Rhinanthus minor)


aromatig

cy-adj

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

aromatig (feminine singular)
aromatig (plural)
mor aromatig (equative)
mwy aromatig (comparative)
mwyaf aromatig (superlative)
aromatig
haromatig (prothesis-h)


Enceladws

Borrowed from English Enceladus, from Ancient Greek Ἐγκέλαδος (Enkélados).

(astronomy) Enceladus (a moon of Saturn)


Iapetws

Borrowed from English Iapetus, from Ancient Greek Ἰαπετός (Iapetós).


syrthni

cy-noun

syrthni m or f (uncountable, not mutable)


fflagelwm

fflagelwm m (plural fflagella, not mutable)

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


Clec Fawr

y Glec Fawr (canonical feminine)
Clec Fawr
Glec Fawr (soft)
Nghlec Fawr
Chlec Fawr


parddu'r briwydd

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

(phytopathology) bedstraw smut (Melanotaenium endogenum)


trawsnewidiad gwedd

cy-noun

trawsnewidiad gwedd m (plural trawsnewidiadau gwedd)

trawsnewidiadau gwedd (plural)
trawsnewidiad gwedd
drawsnewidiad gwedd (soft)
nhrawsnewidiad gwedd
thrawsnewidiad gwedd


mater tywyll

(astrophysics, cosmology, particle physics) dark matter


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)


gwaddodol

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

gwaddodol (feminine singular)
gwaddodol (plural)
gwaddodol
waddodol (soft)
ngwaddodol


cyflymydd

/kəvˈləmɨ̞ð/


catalydd

Adapted borrowing of English catalyst + -ydd.


catalytig

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

catalytig (feminine singular)
catalytig (plural)

Learned borrowing from English catalytic + -ig.


mân-lun

mân-luniau (plural)
mân-lun
fân-lun (soft)


coloidaidd

cy-adj

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

coloidaidd (feminine singular)
coloidaidd (plural)
coloidaidd
goloidaidd (soft)
ngholoidaidd
choloidaidd

Adapted borrowing of English colloidal. By surface analysis, coloid + -aidd.


cancr

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

(phytopathology) canker (decaying disease of plants)


gyriant fflach

cy-noun

gyriant fflach m (plural gyriannau fflach)


manddryllddail

cy-adj

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)


gwyrdroi

cy-verb

gwyrdroi (first-person singular present gwyrdrôf or gwyrdroaf)

gwyrdrôf (first-person present singular)
gwyrdroaf (first-person present singular)
gwyrdroi
wyrdroi (soft)
ngwyrdroi

From gŵyr (“aslant, askew”) + troi (“turn”).


lluosydd

lluosyddion (plural)
lluosydd
luosydd (soft)

(arithmetic, economics, physics) multiplier


cryno-lun

mân-luniau (plural)
cryno-lun
gryno-lun (soft)
nghryno-lun
chryno-lun


gwrthdorri

gwrthdorri (first-person singular present gwrthdorraf)

gwrthdorraf (first-person present singular)
gwrthdorri
wrthdorri (soft)
ngwrthdorri

From gwrth- (“anti-”) + torri (“to cut, to break”).


rhathell

rhathellau (plural)
rhathell
rathell (soft)


llechen

llechennau (plural)
llechan (alternative North-Wales)

(computing) slate, tablet, tablet computer


deurywiaeth

deurywiaeth
ddeurywiaeth (soft)
neurywiaeth

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

(biology) hermaphroditism
(botany) bisexuality