Lewis & Short

cōmissābundus (cōmess-), a, um, adj. [comissor], holding a riotous procession, revelling, banqueting, carousing: comissabundus temulento agmine per Indiam incessit (Alexander Magnus; in regard to his imitation of the procession in honor of Bacchus through Asia; v. Curt. 9, 10, 26), Liv. 9, 17, 17; Curt. 5, 7, 10; 9, 10, 26: ubi (Athenis) comissabundi juvenes ante meridiem conventus sapientium frequentabant, decorated, crowned, etc., for a procession, Plin. 21, 3, 6, § 9.