French word oui comes from Proto-Indo-European *h₃ókʷ-, Old French il, Old French o, Vulgar Latin hoc ille, Vulgar Latin *hoc ille, and later Proto-Italic *okʷelos (Eye.)
| Dictionary entry | Language | Definition |
|---|---|---|
| *h₃ókʷ- | Proto-Indo-European (ine) | |
| il | Old French (fro) | He (third-person masculine singular subject pronoun). They (third-person masculine plural subject pronoun). |
| o | Old French (fro) | |
| hoc ille | Vulgar Latin (la-vul) | |
| *hoc ille | Vulgar Latin (la-vul) | |
| *okʷelos | Proto-Italic (itc-pro) | Eye. |
| *okelos | Proto-Italic (itc-pro) | |
| oculum | Latin (lat) | |
| oclus | Latin (lat) | (Vulgar Latin) ("eye"). |
| oclus | Vulgar Latin (la-vul) | |
| o il | Old French (fro) | |
| oui | French (fr) | Yes Yes. |