Lat. In tho civil law. A transacter 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, inter- meddles with his property, as to do work on it, or to carry it to auother place, etc. Story, Bailm.