Where does “Gwenneg” come from?

Gwenneg (Breton) comes from Old Breton uuin, from Proto-Brythonic gwɨnn, from Proto-Celtic windos, from Proto-Indo-European windo-, from Proto-Indo-European weyd- — to see.

Ancestry of “Gwenneg”, step by step

StepLanguageWordMeaning
1Old Bretonuuinwhite
2Proto-Brythonicgwɨnnwhite
3Proto-Celticwindoswhite
4Proto-Indo-Europeanwindo-—
5Proto-Indo-Europeanweyd-to see
Every word from Proto-Indo-European weyd- →Every word from Proto-Indo-European windo- →Every word from Proto-Celtic windos →