Where does “Donnchad” come from?

Donnchad (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.

Ancestry of “Donnchad”, step by step

Donnchad 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 donn

StepLanguageWordMeaning
1Old Irishdonnbrown, tawny, dun; hazel; chestnut
2Proto-Celticdusnosdark, brown
3Proto-Indo-Europeandʰewh₂-smoke; mist, haze

Words derived from “Donnchad”

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