Colóssicus, pen. cor. Adiect. Idem. Plin. Colossica onera. Vitru. Great and heauy burdens.
Lewis and Short: Latin dictionary
cŏlossĭcus, a, um, adj., = kolossiko/s, colossal, gigantic: Apollo, Vitr. 10, 6: signum colossicon, Plin. 34, 8, 19, 54.— Comp. Gr. colossicoteros, -a, acc. -an, Vitr. 3, 5, 9, p. 98 Bip., and id. 10, 2, 4, p. 292 id. (prob. to be written with Greek letters).