Where does “dec” come from?

dec (Old Breton) comes from Proto-Brythonic deg, from Proto-Celtic dekam, from Proto-Indo-European déḱm̥ — ten.

Ancestry of “dec”, step by step

StepLanguageWordMeaning
1Proto-Brythonicdegten
2Proto-Celticdekamten
3Proto-Indo-Europeandéḱm̥ten

Words derived from “dec”

Every word from Proto-Indo-European déḱm̥ →Every word from Proto-Celtic dekam →Every word from Proto-Brythonic deg →