From Vulgar Latin oclus, syncopated from Latin oculus, from Proto-Italic *okelos, ultimately from Proto-Indo-European *h₃okʷ-, *h₃ekʷ- (“eye; to see”). Doublet of oculo, a borrowing.
Ćwicz mówienie i zapamiętywanie " occhio " i wielu innych słów i zdań z włoski .