Italian word occhio comes from Proto-Indo-European *h₃ekʷ-, and later Proto-Italic *okʷelos (Eye.)
| Dictionary entry | Language | Definition |
|---|---|---|
| *h₃ekʷ- | Proto-Indo-European (ine-pro) | eye, eye, to see, to see, eye; to see |
| *okelos | Proto-Italic (itc-pro) | |
| *h₃okʷih₁ | Proto-Indo-European (ine-pro) | |
| *okʷelos | Proto-Italic (itc-pro) | Eye. |
| oculum | Latin (lat) | |
| oclus | Latin (lat) | (Vulgar Latin) ("eye"). |
| oclum | Vulgar Latin (la-vul) | |
| occhio | Italian (ita) | Beware!. Look out! watch out!. Mind! Eye. |