Middle English word one comes from Proto-Indo-European *h₂en- (On, onto.), Old English and, ond, end (Even; also And.), Old English ānes
| Dictionary entry | Language | Definition |
|---|---|---|
| *h₂en- | Proto-Indo-European (ine-pro) | On, onto. |
| and, ond, end | Old English (ang) | Even; also And. |
| ānes | Old English (ang) | |
| *ana | Proto-Germanic (gem-pro) | |
| *h₂enh̥₂ | Proto-Germanic (gem-pro) | |
| *an | Proto-Germanic (gem-pro) | On, onto (+accusative) onto. (+dative) on, upon. |
| an | Old English (ang) | Lone. Sole A; an (indefinite article) (cardinal) one. |
| oan | Middle English (enm) |