Where does “gwall” come from?

gwall (Middle Welsh) comes from Proto-Brythonic *gwall, from Proto-Celtic *wolsos — something wrong.

Ancestry of “gwall”, step by step

StepLanguageWordMeaning
1Proto-Brythonic*gwall—
2Proto-Celtic*wolsossomething wrong

Words derived from “gwall”

Every word from Proto-Celtic *wolsos →Every word from Proto-Brythonic *gwall →