cop

copynnod (plural)
copynnau (plural)
cop (mutation mutation-radical)
gop (mutation mutation-soft)
nghop (mutation mutation-nasal)
chop (mutation mutation-aspirate)

From Middle English coppe (spider), from Old English copp, from Proto-West Germanic *kopp (“round object, orb”).


glöyn byw

glöynnod bywion (plural)
glöyn byw (mutation mutation-radical)
löyn byw (mutation mutation-soft)
nglöyn byw (mutation mutation-nasal)

/ˌɡloː.ɨ̞n ˈbɪu̯/

/ˌɡloː.ɨ̞n ˈbɨ̞u̯/

Literally “living coal”, in reference to many common species of nymphalid butterflies which are red-orange and black.


pilipala

cy-noun

pilipala m (plural pilipalod or pilipalas)

pilipalod (plural)
pilipalas (plural)
pilipala (mutation mutation-radical)
bilipala (mutation mutation-soft)
mhilipala (mutation mutation-nasal)
philipala (mutation mutation-aspirate)


cranc

crancod (plural)
cranc (mutation mutation-radical)
granc (mutation mutation-soft)
nghranc (mutation mutation-nasal)
chranc (mutation mutation-aspirate)

From Middle Welsh cranc, from Proto-Brythonic *krank, borrowed from Late Latin crancus, a variant form of Latin cancer. Cognate with Breton krank.


pryf

pryfed (plural)
pryf (mutation mutation-radical)
bryf (mutation mutation-soft)
mhryf (mutation mutation-nasal)
phryf (mutation mutation-aspirate)

PIE word
 *kʷŕ̥mis
From Middle Welsh pryf, from Old Welsh prem, from Proto-Brythonic *prɨβ̃, from Proto-Celtic *kʷrimis. Compare Cornish pryv (“worm, grub”), Breton preñv (“worm”).


crwban

cy-adj

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

crwban (feminine singular)
crwban (plural)
mor grwban (equative)
mwy crwban (comparative)
mwyaf crwban (superlative)
crwban (mutation mutation-radical)
grwban (mutation mutation-soft)
nghrwban (mutation mutation-nasal)
chrwban (mutation mutation-aspirate)


lindys

cy-noun

lindys m (collective, singulative lindysyn, not mutable)


gwenyn

gwenyn f (collective, singulative gwenynen)

gwenynen (singulative)
gwenyn (mutation mutation-radical)
wenyn (mutation mutation-soft)
ngwenyn (mutation mutation-nasal)

From Proto-Celtic *wan-inyo- (compare Breton gwenan, Cornish gwenen), diminutive of *wano- (“tip, sting”) (modern gwân; see gwanu).


cimwch

cimwch m (plural cimychiaid or cimychod or cimych)

cimychiaid (plural)
cimychod (plural)
cimych (plural)
cimwch (mutation mutation-radical)
gimwch (mutation mutation-soft)
nghimwch (mutation mutation-nasal)
chimwch (mutation mutation-aspirate)

. Possibly cognate to Irish gliomach, Scottish Gaelic giomach, Manx gimmagh.

(by extension) a crabbed, surly or clumsy person


cylion

head

cylion m pl or f pl (masculine singulative cylionyn, feminine singulative cylionen)

cylionyn (masculine singulative)
cylionen (feminine singulative)
cylion (mutation mutation-radical)
gylion (mutation mutation-soft)
nghylion (mutation mutation-nasal)
chylion (mutation mutation-aspirate)

From Middle Welsh kylyon, from Proto-Celtic *kulis (compare Cornish kelyon, Breton kelien, Old Irish cuil), from Proto-Indo-European *ḱuH-ló- (compare Latin culex (“gnat”), Old Armenian սլաք (slakʻ, “roasting spit”)).


pryfyn

pryfed (plural)
pryfyn (mutation mutation-radical)
bryfyn (mutation mutation-soft)
mhryfyn (mutation mutation-nasal)
phryfyn (mutation mutation-aspirate)


trogen

trogod (plural)
trogen (mutation mutation-radical)
drogen (mutation mutation-soft)
nhrogen (mutation mutation-nasal)
throgen (mutation mutation-aspirate)

(colloquial) alternative form of torogen (“tick”)


corgimwch

corgimychiaid (plural)
corgimwch (mutation mutation-radical)
gorgimwch (mutation mutation-soft)
nghorgimwch (mutation mutation-nasal)
chorgimwch (mutation mutation-aspirate)

From cor (“dwarf”) + cimwch (“lobster”).


cacwn

cy-noun

cacwn f (collective, singulative cacynen)

cacynen (singulative)
cacwn (mutation mutation-radical)
gacwn (mutation mutation-soft)
nghacwn (mutation mutation-nasal)
chacwn (mutation mutation-aspirate)

Possibly from cach (“excrement”) + cŵn (“dogs”). See cachgi bwm (“bumblebee”) for similar etymological elements.


llau

lleuen (singulative)
llau (mutation mutation-radical)
lau (mutation mutation-soft)

From Middle Welsh lleu, from Proto-Celtic *luwā (compare Breton laou, Cornish low), from Proto-Indo-European *lewH- (compare English louse).


clêr

clêr f (collective, singulative cleren or cleheren)

cleren (singulative)
cleheren (singulative)
clêr (mutation mutation-radical)
glêr (mutation mutation-soft)
nghlêr (mutation mutation-nasal)
chlêr (mutation mutation-aspirate)


corryn

corynnod (plural)
corryn (mutation mutation-radical)
gorryn (mutation mutation-soft)
nghorryn (mutation mutation-nasal)
chorryn (mutation mutation-aspirate)


morgrug

morgrug m (collective, singulative morgrugyn)

morgrugyn (singulative)
morgrug (mutation mutation-radical)
forgrug (mutation mutation-soft)

With an original meaning “anthill, ant colony”, from *mor (combining form of mŷr (“ant”)) + crug (“hill”).


gwyfyn

gwyfynod (plural)
gwyfyn (mutation mutation-radical)
wyfyn (mutation mutation-soft)
ngwyfyn (mutation mutation-nasal)


pry'r gannwyll

pry'r gannwyll m (plural pryfed y gannwyll)

pryfed y gannwyll (plural)
pry'r gannwyll (mutation mutation-radical)
bry'r gannwyll (mutation mutation-soft)
mhry'r gannwyll (mutation mutation-nasal)
phry'r gannwyll (mutation mutation-aspirate)

/ˌprɨːr ˈɡanʊɨ̯ɬ/


torogen

torogod (plural)
torogen (mutation mutation-radical)
dorogen (mutation mutation-soft)
nhorogen (mutation mutation-nasal)
thorogen (mutation mutation-aspirate)


rhwyll

rhwyllau (plural)
rhwyll (mutation mutation-radical)
rwyll (mutation mutation-soft)


gwybed

gwybedyn (singulative)
gwybed (mutation mutation-radical)
wybed (mutation mutation-soft)
ngwybed (mutation mutation-nasal)


gwybed ffwng

head

gwybed ffwng m (singulative gwybedyn ffwng)

gwybedyn ffwng (singulative)
gwybed ffwng (mutation mutation-radical)
wybed ffwng (mutation mutation-soft)
ngwybed ffwng (mutation mutation-nasal)

/ˌɡwəbɛd ˈfʊŋ/


copyn

copynnod (plural)
copynnau (plural)
copyn (mutation mutation-radical)
gopyn (mutation mutation-soft)
nghopyn (mutation mutation-nasal)
chopyn (mutation mutation-aspirate)


pryf copyn

pryfed copyn (plural)
pryf copyn (mutation mutation-radical)
bryf copyn (mutation mutation-soft)
mhryf copyn (mutation mutation-nasal)
phryf copyn (mutation mutation-aspirate)

/ˌprɨː ˈkɔpɨ̞n/


pryf cop

pryfed cop (plural)
pryf cop (mutation mutation-radical)
bryf cop (mutation mutation-soft)
mhryf cop (mutation mutation-nasal)
phryf cop (mutation mutation-aspirate)


cyfarwydd

cy-noun

cyfarwydd m or f by sense (plural cyfarwyddiaid or cyfarwyddion)

cyfarwyddiaid (plural)
cyfarwyddion (plural)
cyfarwydd (mutation mutation-radical)
gyfarwydd (mutation mutation-soft)
nghyfarwydd (mutation mutation-nasal)
chyfarwydd (mutation mutation-aspirate)

From cyf- + arwydd. Cognate with Old Irish comartha (“sign, mark, symbol”).


cachgi bwm

cy-noun

cachgi bwm m (plural cachgwn bwm or cachgi bwms)

cachgwn bwm (plural)
cachgi bwms (plural)
cachgi bwm (mutation mutation-radical)
gachgi bwm (mutation mutation-soft)
nghachgi bwm (mutation mutation-nasal)
chachgi bwm (mutation mutation-aspirate)

/ˌkaχɡɪ ˈbʊm/

Possibly from cachgi (“coward”) + bwm (“boom, buzz”), where cachgi is literally an "excrement dog" (cf. cacwn (“bumblebees”) for similar etymological elements) and bwm is onomatopoeic (compare English bumblebee).


picwns

picwns f (collective, singulative picwnen)

picwnen (singulative)
picwns (mutation mutation-radical)
bicwns (mutation mutation-soft)
mhicwns (mutation mutation-nasal)
phicwns (mutation mutation-aspirate)

Related to pipgwn (“wasps”), namely pib (“pipe”) + cŵn (“dogs”), possibly under the influence of pig (“prickle, spike, sting”). See also piffgwn (“wasps”).


gwenyn meirch

gwenyn meirch f (collective, singulative gwenynen feirch)

gwenynen feirch (singulative)
gwenyn meirch (mutation mutation-radical)
wenyn meirch (mutation mutation-soft)
ngwenyn meirch (mutation mutation-nasal)

From gwenyn (“bees”) + meirch (“horses, stallions”).


gwenyn gwyllt

cy-noun

gwenyn gwyllt f (collective, singulative gwenynen wyllt)

gwenynen wyllt (singulative)
gwenyn gwyllt (mutation mutation-radical)
wenyn gwyllt (mutation mutation-soft)
ngwenyn gwyllt (mutation mutation-nasal)

/ˌɡwɛnɨ̞n ˈɡwɨːɬd/

[ˌɡwɛnɨ̞ŋ ˈɡwɨːɬt]

/ˌɡweːnɪn ˈɡwɪɬd/

[ˌɡweːnɪŋ ˈɡwɪɬt]

/ˌɡwɛnɪn ˈɡwɪɬd/

[ˌɡwɛnɪŋ ˈɡwɪɬt]

From gwenyn (“bumblebees, wasps, hornets”) + gwyllt (“wild”).


cacwn meirch

cy-noun

cacwn meirch f (collective, singulative cacynen feirch)

cacynen feirch (singulative)
cacwn meirch (mutation mutation-radical)
gacwn meirch (mutation mutation-soft)
nghacwn meirch (mutation mutation-nasal)
chacwn meirch (mutation mutation-aspirate)

From cacwn (“wasps, bumblebees, hornets”) + meirch (“horses, stallions”).


gwenyn mêl

cy-noun

gwenyn mêl f (collective, singulative gwenynen fêl)

gwenynen fêl (singulative)
gwenyn mêl (mutation mutation-radical)
wenyn mêl (mutation mutation-soft)
ngwenyn mêl (mutation mutation-nasal)


marchgacwn

marchgacwn f (collective, singulative marchgacynen)

marchgacynen (singulative)
marchgacwn (mutation mutation-radical)
farchgacwn (mutation mutation-soft)

From march (“horses, stallions”) + cacwn (“wasps, bumblebees, hornets”).


picwns coch

cy-noun

picwns coch f (collective, singulative picwnen goch)

picwnen goch (singulative)
picwns coch (mutation mutation-radical)
bicwns coch (mutation mutation-soft)
mhicwns coch (mutation mutation-nasal)
phicwns coch (mutation mutation-aspirate)


chwain

chwain f (collective, singulative chwannen, not mutable)

From Middle Welsh chwein; cognate with Breton c'hoen.


llwydfelyn

llwydfelynion (plural)
llwydfelyn (mutation mutation-radical)
lwydfelyn (mutation mutation-soft)

/ɬʊɨ̯dˈvɛlɨ̞n/

Colias croceus
Wikispecies:Colias croceus

clouded yellow (any butterfly of the genus Colias, especially Colias croceus)


sgorpion

sgorpion m (plural sgorpionau or sgorpiynau, not mutable)

Borrowed from Middle English scorpioun or perhaps directly from Old French scorpïon or Anglo-Norman scorpïun, all derived from Latin scorpio, from Ancient Greek σκορπίος (skorpíos).


britheg

brithegion (plural)
britheg (mutation mutation-radical)
fritheg (mutation mutation-soft)
mritheg (mutation mutation-nasal)

snake's head fritillary (Fritillaria meleagris)


gwas neidr

gweision neidr (plural)
gwas neidr (mutation mutation-radical)
was neidr (mutation mutation-soft)
ngwas neidr (mutation mutation-nasal)


gwas y neidr

gwas y neidr m (plural gweision y neidr)

gweision y neidr (plural)
gwas y neidr (mutation mutation-radical)
was y neidr (mutation mutation-soft)
ngwas y neidr (mutation mutation-nasal)

From gwas (“servant”) + y (“(of) the”) + neidr (“snake”).


gwäell

gwëyll (plural)
gweill (plural)
gwäell (mutation mutation-radical)
wäell (mutation mutation-soft)
ngwäell (mutation mutation-nasal)

darter (dragonfly in the genus Sympetrum)


mursen

Possible borrowing from Old French virgene (“virgin”), backformed with /m/ because /v/ is its soft mutation (see similar examples: mantais (“advantage”), melfaréd (“velveret”), melfed (“velvet”), mentr (“venture”)).


llau pen

cy-noun

llau pen f (collective, singulative lleuen pen)

lleuen pen (singulative)
llau pen (mutation mutation-radical)
lau pen (mutation mutation-soft)

/ˌɬaɨ̯ ˈpɛn/


nedd

nedd f (collective, singulative nedden, not mutable)

From Proto-Celtic *snidā, from Proto-Indo-European *-níd-. Cognate with Cornish nedh, Breton nez, Irish sniodh, Manx snieg, Scottish Gaelic sneadh and also English nit.


siobyn

siobyn m (plural siobynnau or siobau, not mutable)

A tussock moth, particularly the rusty tussock moth (Orgyia antiqua).


llyg

llyg (plural)
llyg (mutation mutation-radical)
lyg (mutation mutation-soft)


marblis coed

marblis coed f (collective, singulative marblen goed)

marblen goed (singulative)
marblis coed (mutation mutation-radical)
farblis coed (mutation mutation-soft)


afal derw

afalau derw (plural)
afal derw (mutation mutation-radical)
hafal derw (mutation prothesis-h)


marbls bwci

marbls bwci f (collective, singulative ?)

marbls bwci (mutation mutation-radical)
farbls bwci (mutation mutation-soft)

marblis (“marbles”) + bwci (“boggart, bogey”).

(dialectal, Carmarthenshire) oak galls, oak apples


trilliw

cy-adj

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

trilliw (feminine singular)
trilliw (plural)


ceiliog rhedyn

cy-noun

ceiliog rhedyn m (plural ceiliogod rhedyn)

ceiliogod rhedyn (plural)
ceiliog rhedyn (mutation mutation-radical)
geiliog rhedyn (mutation mutation-soft)
ngheiliog rhedyn (mutation mutation-nasal)
cheiliog rhedyn (mutation mutation-aspirate)


chwilen

chwilen f (plural chwilod or chwilennod, not mutable)

Back-formation from chwilod (“beetles”) by analogy with malwen/malwod (“snail”/“snails”), ploryn/plorod (“pimple”/“pimples”), etc.. Compare Breton c'houil, Cornish hwil.


mamwenyn

mamwenyn f (collective, singulative mamwenynen)

mamwenynen (singulative)
mamwenyn (mutation mutation-radical)
famwenyn (mutation mutation-soft)


modrydaf

modrydafau (plural)
modrydaf (mutation mutation-radical)
fodrydaf (mutation mutation-soft)

From *modr (“mother”) + bydaf (“swarm, nest of (wild) bees”)


bidog gwernos

cy-noun

bidog gwernos m (plural bidogau gwernos)

bidogau gwernos (plural)
bidog gwernos (mutation mutation-radical)
fidog gwernos (mutation mutation-soft)
midog gwernos (mutation mutation-nasal)

Acronicta alni
Acronicta alni#Translingual


cochbryf

[ˈkʰɔχprɨ̞v]


trychfil

trychfilod (plural)
trychfil (mutation mutation-radical)
drychfil (mutation mutation-soft)
nhrychfil (mutation mutation-nasal)
thrychfil (mutation mutation-aspirate)

From trwch (“sad, unfortunate”) + mil (“beast, creature”).

com

creepy-crawly, bug, critter
especially an insect


ceiliog y gwair

cy-noun

ceiliog y gwair m (plural ceiliogod y gwair)

ceiliogod y gwair (plural)
ceiliog y gwair (mutation mutation-radical)
geiliog y gwair (mutation mutation-soft)
ngheiliog y gwair (mutation mutation-nasal)
cheiliog y gwair (mutation mutation-aspirate)