Definition from Wiktionary, the free dictionary
Form of the infix -ez-; probably from a Vulgar Latin *-idiās or *-izās, conjugated forms of *-idiō, *-izō, ultimately from Ancient Greek -ίζειν (-ízein), used in Romanian conjugated forms of verbs. See -ez.
- used with a stem to form the second-person singular present of some -a (first conjugation) verbs. E.g. lucrezi from lucra, durezi from dura, frânezi from frâna, vânezi from vâna.