tad

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


mam

From Middle Welsh mam, from Proto-Brythonic *mamm, from Proto-Celtic *mammā, a baby talk word replacing Proto-Celtic *mātīr.

onomatopoeic

baby talk

mam miloedd

mind-your-own-business, Soleirolia soleirolii; ivy-leaved toadflax, Cymbalaria muralis

mam y glo

mother of coal, impure coal in a coal seam

mam yng nghyfraith

mother-in-law; wild pansy, Viola tricolor

mam yn Israel

mother in Israel, elderly woman much loved by her family or community


nain

From Proto-Brythonic *nanī, from Proto-Celtic *nana (“grandmother”), probably from a Proto-Indo-European root imitative of a child speaking, similar to Ancient Greek νάννα (nánna).

imitative


gŵr

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


merch

From Proto-Brythonic *merx, from Proto-Celtic *merkā (compare Cornish myrgh, mergh, Breton merc’h), from Proto-Indo-European *méryos (“boy, girl”) (compare Scottish Gaelic smarach (“lad”), Latin marītus (“husband”), Ancient Greek μεῖραξ (meîrax, “boy, girl”), Old Armenian մարի (mari)). Related to morwyn.


nai

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


mab

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


mam-gu

cy-noun

mam-gu f (plural mamau-cu or mamguod or mam-gus)

mamau-cu (plural)
mamguod (plural)
mam-gus (plural)
mam-gu
fam-gu (soft)

From mam (“mother”) + cu (“dear, beloved”).


modryb

From Proto-Brythonic *mọdreb (“aunt”); compare Cornish modrep, Breton moereb.


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”).


teulu

teuluoedd (plural)
teulu
deulu (soft)
nheulu
theulu

From Proto-Celtic *tegoslougom, from Proto-Celtic *tegos (“house”) + Proto-Celtic *slougos (“troup, army”), equivalent to
tŷ + llu. Compare Cornish teylu, Irish teaghlach, Scottish Gaelic teaghlach, Manx lught thie.


brawd

brodiau (plural)
brawd
frawd (soft)
mrawd

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


chwaer

cy-noun

chwaer f (plural chwiorydd or chwioredd or chwaeoredd, diminutive chwaeren, not mutable)

chwiorydd (plural)
chwioredd (plural)
chwaeoredd (plural)
chwaeren (diminutive)
chwaer

From Proto-Brythonic *hwoɨr (compare Breton c’hoar), from Proto-Celtic *swesūr (compare Old Irish siur), from Proto-Indo-European *swésōr.

sister, half-sister
(figuratively) female mate, partner

sister, half-sister
female mate, partner


taid

teidiau (plural)
taid
daid (soft)
nhaid
thaid


wyres

wyresau (plural)
wyres
hwyres (prothesis-h)


llysfab

llysfeibion (plural)
llysfab
lysfab (soft)


llysfam

llysfamau (plural)
llysfam
lysfam (soft)


llystad

llystadau (plural)
llystad
lystad (soft)

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


llysferch

llysferched (plural)
llysferch
lysferch (soft)


pencenedl

pennau cenedl (plural)
pencenedl
bencenedl (soft)
mhencenedl
phencenedl

From Old Welsh penkenedel. By surface analysis, pen (“head”) + cenedl (“kindred”).


nith

From Proto-Brythonic *nėθ, from Proto-Celtic *nextī, from Proto-Indo-European *néptih₂ (“niece, granddaughter”)


cyfnither

cy-noun

cyfnither f (plural cyfnitheroedd or cyfnitherwydd, masculine cefnder)

cyfnitheroedd (plural)
cyfnitherwydd (plural)
cefnder (masculine)
cyfnither
gyfnither (soft)
nghyfnither
chyfnither

From cyf- + nith (“niece”) + dderw (“true”).


priod

cy-adj

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

priod (feminine singular)
priod (plural)

From Middle Welsh priawt, from Proto-Brythonic *priọd, borrowed from Latin prīvātus. Cognate with Cornish pries, Breton pried. Doublet of preifat, a later borrowing via English.


priod

priodau (plural)
priod
briod (soft)
mhriod
phriod


tylwyth

tylwythau (plural)
tylwyth
dylwyth (soft)
nhylwyth
thylwyth

From tŷ (“house”) + llwyth (“people”). Akin to teulu and present in Tylwyth Teg (“fair folk (elves, fairies)”).


gorchaw

gorchawon (plural)
gorchaw
orchaw (soft)
ngorchaw

From gor- (“over, hyper-”) + caw (“bandage, knot”).


teulu brenhinol

cy-noun

teulu brenhinol m (plural teuluoedd brenhinol)

teuluoedd brenhinol (plural)
teulu brenhinol
deulu brenhinol (soft)
nheulu brenhinol
theulu brenhinol


yng nghyfraith

/əŋ ˈŋ̊əvrai̯θ/

/əŋ ˈŋ̊əvrai̯θ/


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”).


gorchaifn

gorcheifnaint (plural)
gorchaifn
orchaifn (soft)
ngorchaifn

(obsolete) fourth cousin, relative or kinsman of the fifth degree


caifn

ceifnaint (plural)
caifn
gaifn (soft)
nghaifn
chaifn

From Middle Welsh keifn, from Proto-Brythonic *köβ̃n, from , from Proto-Indo-European *ḱóm (“beside, with”) + *népōts (“descendant; nephew”).

der

(obsolete) relative or kinsman of the fourth degree


teuluol

cy-adj

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

teuluol (feminine singular)
teuluol (plural)
teuluol
deuluol (soft)
nheuluol
theuluol

From teulu (“family”) + -ol (adjective suffix).

af

dadl deuluol

tlys teululol