Where does “gwerinwyr” come from?

gwerinwyr (Welsh) comes from Welsh gwerin, from Proto-Celtic warinā, from Proto-Celtic wer-.

Ancestry of “gwerinwyr”, step by step

gwerinwyr traces back through two separate lines of ancestry.

via Welsh gwerin

StepLanguageWordMeaning
1Welshgwerinpeople; the 'men' or pieces used in chess,...
2Proto-Celticwarinā—
3Proto-Celticwer-—

via Welsh ŵyr

StepLanguageWordMeaning
1WelshŵyrSoft mutation of gŵyr; grandson, grandchild
2Middle WelshwyrSoft mutation of gwyr
Every word from Proto-Celtic wer- →Every word from Proto-Celtic warinā →Every word from Welsh gwerin →