Middle Irish fri

← Proto-Celtic *writ- (inherited)

← Welsh wrth (cognate)

← Welsh gwrth- (mention)

← Proto-Indo-European *wert- (root)

← Proto-Indo-European *wert- (derived)

← Latin versus (cognate)

← Old Irish fri (inherited)

→ Scottish Gaelic ri (inherited)

→ Manx rish (mention)