actio de in rem verso

noun

ac·​tio de in rem ver·​so

ˈak-shē-ō-ˌdē-in-ˈrem-ˈvər-sō, ˈäk-tē-ō-ˌdā-in-ˈrem-ˈver-sō

in the civil law of Louisiana : a doctrine equivalent to the common-law doctrine of unjust enrichment

Word History

Etymology

Latin, legal action over something converted to the benefit (of the principal in the law of agency)