(adjective) : ūsŭārĭus, a, um, id.
* Of or belonging to use, usuary, viz.
* Pass., that is used, made use of: servus,i. e. whom one has the use of, but does not own,Dig. 7, 8, 14; Gell. 4, 1, 23.
* Act., as subst.: ūsŭā-rĭus, ii, m., one who uses or has the use of a thing, but no right of property in it: usus aquae personalis est: et ideo ad heredem usuarii transmitti non potest,Dig. 7, 8, 21: eadem et in usuario dicenda sunt,ib. 7, 1, 13, § 2.