Where does “dius” come from?
dius (Latin) comes from Proto-Italic djous, from Proto-Indo-European dyḗws, from Proto-Indo-European dyéws, from Proto-Indo-European dyew- — to be bright; sky, heaven.
Ancestry of “dius”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Proto-Italic | djous | day, sky; Jupiter |
| 2 | Proto-Indo-European | dyḗws | sky, heaven; sky god |
| 3 | Proto-Indo-European | dyéws | — |
| 4 | Proto-Indo-European | dyew- | to be bright; sky, heaven |