Lewis & Short

ŏvīlis, e, adj. [ovis], of or for sheep, sheep- (ante- and post-class.): stercus, Cato, R. R. 39, 1: stabulatio, App. M. 4, p. 145, 13: grex, Dig. 7, 8, 12, § 2 al.
Hence, subst. ovile, q. v.