Lewis & Short

suspendĭōsus, a, um, adj. [suspendium], of or belonging to hanging: fames, suffered while hanging, Plin. 8, 37, 56, § 134 Jan.
Hence, subst.: suspendĭōsus, i, m., one that has hanged himself, Varr. ap. Serv. Verg. A. 12, 603; Plin. 28, 4, 12, § 49; Dig. 3, 2, 11.