Irish Cathal

← Gaulish Katouualos (cognate)

← Proto-Celtic *Katuwalos (inherited)

← Proto-Celtic *walos (mention)

← Welsh Cadwal (cognate)

← Irish cath (mention)

← Irish Domhnall (mention)

← Irish Dónall (mention)

← Irish Conall (mention)

← Old Welsh Catgual (cognate)

← Old Irish Cathal (inherited)

→ English Cathal (borrowed)

→ Italian Cataldo (derived)