O / ŏpŭlus
noun

ŏpŭlus

gen. ŏpŭli · gender feminine · decl. 2nd
a kind of maple-tree
a kind of maple-tree: in arboribus, quas vocant opulos, Varr. R. R. 1, 8; Col. 5, 6, 4; 5, 7, 1 al.; Plin. 14, 1, 3, § 12.