Where does “Keane” come from?

Keane (English) comes from Irish Ó Catháin, from Irish cath, from Old Irish cath, from Primitive Irish ᚉᚐᚈᚈᚒ, from Proto-Celtic katus, from Proto-Indo-European kéh₃tus, from Proto-Indo-European -tus — Derives action nouns from verb roots.

Ancestry of “Keane”, step by step

StepLanguageWordMeaning
1IrishÓ Catháindescendant of Cathán
2Irishcathbattle; conflict, trial; battalion
3Old Irishcathbattle, fight; troop, battalion
4Primitive Irishᚉᚐᚈᚈᚒbattle
5Proto-Celtickatusbattle
6Proto-Indo-Europeankéh₃tusfight
7Proto-Indo-European-tusDerives action nouns from verb roots

Words derived from “Keane”

Every word from Proto-Indo-European -tus →Every word from Proto-Indo-European kéh₃tus →Every word from Proto-Celtic katus →