Lewis Short
(verb) : pro-lībo, āre
* To pour out, offer as a libation to the gods (Plinian): vina diis,Plin. 14, 18, 22, § 117; 14, 19, 23, § 119; 28, 4, 11, § 46.—Impers. pass.: fictilibus prolibatur simpuviis,Plin. 35, 12, 46, § 158.
Charlton T. Lewis, Charles Short, A Latin Dictionary