O / Opĭlĭus
noun

Opĭlĭus

gen. Opĭli · gender masculine · decl. 2nd
a Roman surname
a Roman surname.
a grammarian and author
Aurelius Opilius, a grammarian and author, Suet. Gram. 6.—
Another; a physician
Another Aurelius Opilius, a physician, Plin. 28, 4, 7, § 38.—
emperor of Rome
M. Opilius Severus Macrinus, emperor of Rome, A. D. 218, Eutr. 8, 21.