negotiorum gestor (ni-goh-shee-or-<<schwa>>m jes-tor), n.[Latin “a manager of another’s affairs”] Roman & civil law. A person who acts without authority to protect another person’s interests, in the reasonable belief that the owner would approve the action if made aware of the circumstances. La. Civ. Code art. 2292. • The actor has a claim to be compensated by the owner for the trouble taken, and the owner has a claim for any loss that results from the negotiorum gestor’s fault. — Sometimes shortened to gestor. Pl. negotiorum gestores.See NEGOTIORUM GESTIO.

[Blacks Law 8th]