sagmārĭus — Lewis & Short
sagmārĭus, a, um, adj.sagma,
I of or belonging to a pack-saddle (post-class.):
equus,a pack-horse, Lampr. Heliog. 4; Aur. ap. Vop. Aur. 7, 7; cf.:
caballus, mula,Isid. Orig. 20, 16, 5.