Where does “Sinn Féin” come from?
Sinn Féin (Irish) comes from Irish sinn, from Old Irish sinni, from Old Irish sisni, from Old Irish snisni, from Proto-Celtic snisni, from Proto-Celtic snīs, from Proto-Indo-European nō̆s — we.
Ancestry of “Sinn Féin”, step by step
Words derived from “Sinn Féin”