NEGOTIORUM GESTIO. Lat. In the civil law. Literally, a doing of business or businesses. A species of spontaneous agency, or an interference by one in the affairs of another, in his absence, from benevolence or friendship, and without authority.
2 Kent, Comm. 616, note; Inst. 3,28,1.
NEGOTIORUM GESTOR. Lat. In the civil law A transactor or manager of business; a person voluntarily constituting himself agent for another; one who,without any mandate or authority, assumes to take charge of an affair or concern for another person, in the latter's absence, but for his interest.
One who spontaneously, and without the knowledge or consent of the owner, intermeddles with his property, as to do work on
it, or to carry it to another place, etc Story,Bailin. § 189.