Where does “devezhioù” come from?

devezhioù (Breton) comes from Breton devezh, from Breton deiz, from Proto-Brythonic dið, from Proto-Celtic dīyos, from Proto-Indo-European dyḗws, from Proto-Indo-European dyéws, from Proto-Indo-European dyew- — to be bright; sky, heaven.

Definitions

Ancestry of “devezhioù”, step by step

StepLanguageWordMeaning
1Bretondevezhday; daytime
2Bretondeizday
3Proto-Brythonicdiðday, daytime
4Proto-Celticdīyosday
5Proto-Indo-Europeandyḗwssky, heaven; sky god
6Proto-Indo-Europeandyéwssky, heaven
7Proto-Indo-Europeandyew-to be bright; sky, heaven
Every word from Proto-Indo-European dyew- →Every word from Proto-Indo-European dyéws →Every word from Proto-Indo-European dyḗws →