Romanian word inocent comes from Latin ingratus (Thankless. Ungrateful. Unpleasant, disagreeable.), Latin nocens

Detailed word origin of inocent

Dictionary entry	Language	Definition
ingratus	Latin (lat)	Thankless. Ungrateful. Unpleasant, disagreeable.
nocens	Latin (lat)
innocens	Latin (lat)	Blameless, guiltless, innocent. Harmless, inoffensive, innoxious.
innocent	French (fra)	Innocent.
inocent	Romanian (ron)	Innocent.