Where does “deiz” come from?
deiz (Breton) comes 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.
deiz (Breton): day
Ancestry of “deiz”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Proto-Brythonic | dið | day, daytime |
| 2 | Proto-Celtic | dīyos | day |
| 3 | Proto-Indo-European | dyḗws | sky, heaven; sky god |
| 4 | Proto-Indo-European | dyéws | — |
| 5 | Proto-Indo-European | dyew- | to be bright; sky, heaven |
Words derived from “deiz”