sellāris — Lewis & Short
sellāris, e, adj.sella,
I of or belonging to a seat (post-class.):
gestatio,in a sedan, Cael. Aur. Tard. 1, 4, 92:
jumenta,furnished with saddles, used for riding, Veg. 2, 28, 34; 6, 7, 5.—Subst.: sellāris, is, m., a saddlehorse, Vit. Caes. Arel. 2, 2, 20.