Middle English word a comes from Proto-Indo-European *h₂en- (On, onto.), Proto-Indo-European *ḱe, Proto-Indo-European *ḱe-, Proto-Indo-European *ki-, Proto-Indo-European *yo-, Latin o (The name of the letter O. O! (vocative particle). Oh!.), Proto-Indo-European - -nós
| Dictionary entry | Language | Definition |
|---|---|---|
| *h₂en- | Proto-Indo-European (ine-pro) | On, onto. |
| *ḱe | Proto-Indo-European (ine-pro) | |
| *ḱe- | Proto-Indo-European (ine-pro) | |
| *ki- | Proto-Indo-European (ine-pro) | |
| *yo- | Proto-Indo-European (ine-pro) | |
| o | Latin (lat) | The name of the letter O. O! (vocative particle). Oh!. |
| - -nós | Proto-Indo-European (ine-pro) | |
| *ana | Proto-Germanic (gem-pro) | |
| *h₂enh̥₂ | Proto-Germanic (gem-pro) | |
| ō | Old English (ang) | |
| *an | Proto-Germanic (gem-pro) | On, onto (+accusative) onto. (+dative) on, upon. |
| *óynos | Proto-Indo-European (ine-pro) | One. Single. |
| *hes | Proto-Germanic (gem-pro) | |
| *ainaz | Proto-Germanic (gem-pro) | (in the plural) some. (in the singular) one. |
| a- | Old English (ang) | Forming words with the sense from, away, off, out, e.g. āniman. |
| hē | Old English (ang) | |
| he | Old English (ang) | He (masculine nominative singular). |
| ānes | Old English (ang) | |
| he | Middle English (enm) | He (third-person singular masculine subject pronoun). |
| oa | Middle English (enm) |