Where does “dei” come from?
dei (West Frisian) comes from Old Frisian dei, from Proto-West Germanic dag, from Proto-Germanic dagaz, from Proto-Indo-European dʰegʷʰ- — to burn; warm, hot.
dei (West Frisian): day; date
Ancestry of “dei”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Old Frisian | dei | day |
| 2 | Proto-West Germanic | dag | day |
| 3 | Proto-Germanic | dagaz | day; name of the D-rune |
| 4 | Proto-Indo-European | dʰegʷʰ- | to burn; warm, hot |