Where does “chwi” come from?

chwi (Middle Welsh) comes from Proto-Celtic swīs, from Proto-Indo-European wōs.

Ancestry of “chwi”, step by step

StepLanguageWordMeaning
1Proto-Celticswīsyou pl
2Proto-Indo-Europeanwōs—

Words derived from “chwi”

Every word from Proto-Indo-European wōs →Every word from Proto-Celtic swīs →
chwi — Etymology, Origin & Word History | Etymology Explorer