Where does “gwrug” come from?

gwrug (Middle Welsh) comes from Proto-Brythonic gwrʉg, from Proto-Celtic wroikos — heather.

Ancestry of “gwrug”, step by step

StepLanguageWordMeaning
1Proto-Brythonicgwrʉgheather
2Proto-Celticwroikosheather

Words derived from “gwrug

Every word from Proto-Celtic wroikosEvery word from Proto-Brythonic gwrʉg