Where does “óen” come from?
óen (Old Irish) comes from Proto-Celtic oinos, from Proto-Indo-European óynos — one; single.
óen (Old Irish): one
Ancestry of “óen”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Proto-Celtic | oinos | one |
| 2 | Proto-Indo-European | óynos | one; single |