Where does “an” come from?
an (Old Frisian) comes from Proto-Germanic *an, from Proto-Germanic ana, from Proto-Indo-European h₂en- — on, onto.
Ancestry of “an”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Proto-Germanic | *an | — |
| 2 | Proto-Germanic | ana | on, at; on, onto; ana |
| 3 | Proto-Indo-European | h₂en- | on, onto |