Where does “Cathal” come from?

Cathal (Old Irish) comes from Proto-Celtic Katuwalos, from Proto-Celtic katus, from Proto-Indo-European kéh₃tus, from Proto-Indo-European -tus — Derives action nouns from verb roots.

Ancestry of “Cathal”, step by step

StepLanguageWordMeaning
1Proto-CelticKatuwalosstrong in battle
2Proto-Celtickatusbattle
3Proto-Indo-Europeankéh₃tusfight
4Proto-Indo-European-tusDerives action nouns from verb roots

Words derived from “Cathal

Every word from Proto-Indo-European -tusEvery word from Proto-Indo-European kéh₃tusEvery word from Proto-Celtic katus