Where does “cummaid” come from?

cummaid (Middle Irish) comes from Middle Irish cumma, from Proto-Celtic kumbā, from Proto-Indo-European kumbʰo-, from Proto-Indo-European keu- — bend; vault, hole; to shine; light; bright.

Ancestry of “cummaid”, step by step

StepLanguageWordMeaning
1Middle Irishcumma—
2Proto-Celtickumbāvalley
3Proto-Indo-Europeankumbʰo-—
4Proto-Indo-Europeankeu-bend; vault, hole; to shine; light; bright

Words derived from “cummaid”

Every word from Proto-Indo-European keu- →Every word from Proto-Indo-European kumbʰo- →Every word from Proto-Celtic kumbā →