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

Detailed word origin of iniuria

Dictionary entry	Language	Definition
ingratus	Latin (lat)	Thankless. Ungrateful. Unpleasant, disagreeable.
jure	Latin (lat)
iniurius	Latin (lat)	Injurious, wrongful, unjust.
iniuria	Latin (lat)	Damage, harm, hurt, injury. Injury, wronging, offense, insult, wrong. Injustice, wrongdoing. Slander.