Where does “catarno” come from?

catarno (Proto-Brythonic) comes from Proto-Celtic katus, from Proto-Indo-European kéh₃tus, from Proto-Indo-European -tus — Derives action nouns from verb roots.

Ancestry of “catarno”, step by step

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

Words derived from “catarno”

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