Where does “cathbarr” come from?

cathbarr (Old Irish) comes 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.

cathbarr (Old Irish): helmet, headpiece

Definitions

  1. helmet, headpiece

Ancestry of “cathbarr”, step by step

cathbarr traces back through two separate lines of ancestry.

via Old Irish cath

StepLanguageWordMeaning
1Old Irishcathbattle, fight; troop, battalion
2Primitive Irishᚉᚐᚈᚈᚒbattle
3Proto-Celtickatusbattle
4Proto-Indo-Europeankéh₃tusfight
5Proto-Indo-European-tusDerives action nouns from verb roots

via Old Irish barr

StepLanguageWordMeaning
1Old Irishbarrtip, point; helmet; point; top, tip, end; crop,...
2Proto-Celticbarrostop, summit
3Proto-Indo-Europeanbʰers-top, tip, point

Words derived from “cathbarr”

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