deirfiúr
Deirfiúr is the Irish word for sister. It is a native Goidelic noun used to refer to a female sibling in Irish-speaking communities and in texts written in Irish. The standard spelling is deirfiúr; the plural form is deirfiúracha. The word is feminine in gender and is used with possessive adjectives (for example, mo dheirfiúr means "my sister") and in prepositional phrases where initial consonants may be lenited after certain prepositions.
In usage, deirfiúr appears widely in everyday speech, literature, folklore, and genealogical writing, reflecting its central