Rhieni
Parents
Mam
Mother
Llysfam
Stepmother
Tad
Father
Llysdad
Stepfather
Gwraig
Wife
Gŵr
Husband
Merch
Daughter
Merch-yng-Nghyfraith
Daughter-in-law
Mab
Son
Mab-yng-nghyfraith
Son-in-law
Chwaer
Sister
Hanner chwaer
Half sister
Chwaer-yng-nghyfraith
Sister-in-law
Chwiorydd
Sisters
Brawd
Brother
Hanner brawd
Half brother
Brawd-yng-nghyfraith
Brother-in-law
Brodyr
Brothers
Mam-gu
Grandmother
Hen fam-gu
Great grandmother
Tad-cu
Grandfather
Hen dad-cu
Great grandfather
Wyres
Grandaughter
Wyr
Grandson
Modryb
Auntie (hard)
Anti
Auntie (easy)
Ewythr
Uncle (hard)
Wncwl
Uncle (easy)
Cyfnither
Cousin (female)
Cefnder
Cousin (male)
Nith
Niece
Nai
Nephew