Where does “en” come from?
en (Esperanto) comes from Catalan en, from Latin Domine, from Latin die, from Latin dies, from Latin diem, from Proto-Italic djēm, from Proto-Italic *djous, from Proto-Indo-European dyḗws — to be bright; sky, heaven.
en (Esperanto): in, within, inside; into
Ancestry of “en”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Catalan | en | Personal article used before masculine given... |
| 2 | Latin | Domine | Guide, O Lord my God, my way by your sight |
| 3 | Latin | die | ablative singular of diēs; day; before the day |
| 4 | Latin | dies | A day, "particularly:" |
| 5 | Latin | diem | accusative singular of diēs |
| 6 | Proto-Italic | djēm | accusative singular of *djous |
| 7 | Proto-Italic | *djous | — |
| 8 | Proto-Indo-European | dyḗws | sky, heaven; sky god |
| 9 | Proto-Indo-European | dyéws | — |
| 10 | Proto-Indo-European | dyew- | to be bright; sky, heaven |