Latin word iniurius comes from Latin jure, Latin ingratus (Thankless. Ungrateful. Unpleasant, disagreeable.)

Detailed word origin of iniurius

Dictionary entry	Language	Definition
jure	Latin (lat)
ingratus	Latin (lat)	Thankless. Ungrateful. Unpleasant, disagreeable.
iniurius	Latin (lat)	Injurious, wrongful, unjust.