A deirfiúr = their sister (said like der-foor, though in my dialect I tend to say drih-foor)
máthair agus iníon agus deirfiúr. (agus = and)
Tá mo dheirfiúr ocht mbliana (d'aois).My sister is eight years (of age).
breithlá shona dhuit, a dheirfiúr
my sister - mo dheirfiúr
In Irish it would be 'deirfiúr dhil'.
Tá beirt deartháir agus beirt deirfiúr agam
mo dheirfiúr
'Your sister and friend' is 'Do dheirfiúr agus do chara'.
Deirfiúr.DeirfiúrDeirfiúr [drifoor]
how do you say my country in irish
In Irish it's do dheirfiúr (your sister) d'aingeal (your angel)