tad

From Proto-Brythonic *tad, from Proto-Celtic *tatos.


bachgen

cy-noun

bachgen m (plural bechgyn or bachgennod or bechgennod)

bechgyn (plural)
bachgennod (plural)
bechgennod (plural)
bachgen
fachgen (soft)
machgen

From bach; the second element appears to be from Proto-Celtic *keneti, from Proto-Indo-European *ken- (compare Welsh cenedl (“nation, tribe, clan, kindred”)).

cog

boy, lad, youngster, servant, young man, son, child


boi

(colloquial, used in the vocative) A term of address for a male. mate, dude, man


brenin

cy-noun

brenin m (plural brenhinoedd, feminine brenhines)

brenhinoedd (plural)
brenhines (feminine)
brenin
frenin (soft)
mrenin

From Middle Welsh brenhin, from Proto-Brythonic *brɨɣėntin, from Proto-Celtic *brigantīnos (“(someone) pre-eminent, outstanding”), from Proto-Indo-European *bʰerǵʰ-.


bachan

(South Wales, colloquial) guy, lad, bloke, chap, dude, fella


pab

From Middle Welsh pap, from Proto-Brythonic *pab, from Vulgar Latin *păpa form Latin pāpa.


gŵr

From Middle Welsh gwr, from Old Welsh gur, from Proto-Brythonic *gwur.


nai

From Middle Welsh nei, from Proto-Brythonic *nei, from Proto-Celtic *neɸūss, from Proto-Indo-European *népōts.


duw

duwiau (plural)
duwies (feminine)
duw
dduw (soft)
nuw

From Middle Welsh duu, from Old Welsh duiu, from Proto-Brythonic *duɨw, from Proto-Celtic *deiwos, from Proto-Indo-European *deywós.


athro

cy-noun

athro m (plural athrawon or athrawion, feminine athrawes)

athrawon (plural)
athrawion (plural)
athrawes (feminine)
athro
hathro (prothesis-h)

From Middle Welsh athro (“teacher”), from Proto-Brythonic *alltrọw, from Proto-Celtic *altrawū (“foster-uncle”), from *aleti (“to nourish”). Related to Breton aotrou m (“lord, gentleman”). Doublet of alltraw (“godfather”).


mab

From Middle Welsh and Old Welsh map, from Proto-Brythonic *mab, from Proto-Celtic *makʷos.


canwr

canwyr (plural)
canwr
ganwr (soft)
nghanwr
chanwr

From canu (“to sing”) + -wr (agent suffix).


cefnder

cefnder m (plural cefndryd or cefndyr, feminine cyfnither)

cefndryd (plural)
cefndyr (plural)
cyfnither (feminine)
cefnder
gefnder (soft)
nghefnder
chefnder

From ceifn (“cousin, kinsman”) + derw (“true”) (compare Cornish kanderu, Breton kenderf, Old Irish der(b)bráthair).


ewythr

ewythredd (plural)
ewythr
hewythr (prothesis-h)

[ˈɛu̯.ɨ̞θr̩]

From Middle Welsh ewythyr, from Proto-Celtic *awontīr (compare Cornish ewnter, Breton eontr, Old Irish amnair), ultimately from Proto-Indo-European *h₂éwh₂- (“(maternal) grandfather/uncle”) (compare Middle Irish ó, Latin avus (“grandfather”), avunculus (“maternal uncle”), dialectal German Awwe (“grandfather”), Oheim (“uncle”).


brawd

brodiau (plural)
brawd
frawd (soft)
mrawd

From Old Welsh braut (“judgment”), from Proto-Celtic *brātus, from Proto-Indo-European *gʷérHtus.


taid

teidiau (plural)
taid
daid (soft)
nhaid
thaid


llysfab

llysfeibion (plural)
llysfab
lysfab (soft)


llystad

llystadau (plural)
llystad
lystad (soft)

llys- (“step-”) + tad (“father”), cognate to Breton leztad


cochyn

cy-noun

cochyn m (plural cochynnau, feminine cochen)

cochynnau (plural)
cochen (feminine)
cochyn
gochyn (soft)
nghochyn
chochyn


prifathro

prifathro m (plural prifathrawon, feminine prifathrawes)

prifathrawon (plural)
prifathrawes (feminine)
prifathro
brifathro (soft)
mhrifathro
phrifathro

From prif- (“chief”) + athro (“teacher”).


gwas

From Middle Welsh gwas, from Old Welsh guas, from Proto-Brythonic *gwass, from Proto-Celtic *uɸostos (“servant”). Compare Breton gwaz.


achan

(South Wales, colloquial, used in the vocative) A term of address for a male. mate, dude, man


telynor

telynorion (plural)
telynor
delynor (soft)
nhelynor
thelynor


Cristion

Cristion m (plural Cristnogion or Cristionogion)

Cristnogion (plural)
Cristionogion (plural)
Cristion
Gristion (soft)
Nghristion
Christion

From Middle Welsh Cristyawn, from Latin Christiānus (“Christian”) (possibly through Ecclesiastical Latin).


mêt

(North Wales, colloquial, used in the vocative) A term of address for a male. mate, dude, man


pysgotwr

pysgotwr m (plural pysgotwyr, feminine pysgotwraig)

pysgotwyr (plural)
pysgotwraig (feminine)
pysgotwr
bysgotwr (soft)
mhysgotwr
physgotwr


brawd yng nghyfraith

brawd yng nghyfraith m (plural brodyr yng nghyfraith)

From brawd + yng nghyfraith, a calque of English brother-in-law.


tad-cu

tad-cu m (plural tadau-cu or tadcuod or tad-cus)

tadau-cu (plural)
tadcuod (plural)
tad-cus (plural)
tad-cu
dad-cu (soft)
nhad-cu
thad-cu

From tad (“father”) + cu (“dear, beloved”).