Irish féin

← Proto-Celtic *swe- (derived)

← Proto-Celtic *sin (mention)

← Irish héin (alter)

← Irish fhéin (alter)

← Irish péin (alter)

← Irish féin- (link)

← Irish Sinn Féin (link)

← Proto-Indo-European *swé (derived)

← Old Irish féin (inherited)

→ English Sinn Féin (compound)

→ Irish Sinn Féin (compound)

→ Irish féin- (mention)

→ Irish féinphic (affix)

→ Irish féinín (affix)