Lewis & Short

Ăristĭus, a, um, adj., name of a Roman gens, e. g. Aristius Fuscus, a learned poet, rhetorician, and grammarian, and an intimate friend of Horace, Hor. Ep. 1, 10 Schmid; id. C. 1, 22; id. S. 1, 9, 61; cf. id. ib. 1, 10, 83, and Bähr, Gesch. d. Röm. Lit. 52, n. 7; Teuffel, Röm. Lit. § 249, 1.