Lewis Short
(verb) : oppīlo (obp-), āvi, ātum, 1, obpilo
* To stop up, shut up (rare but class; syn.: obturo, obstruo, claudo): metretam novam amurcā colluito, oppilato,Cato, R. R. 100; Varr. L. L. 5, 31, 135: ostia,Lucr. 6, 725: scalis tabernae oppilatis,Cic. Phil. 2, 9: clausae portae et oppilatae,Vulg. 2 Esdr. 7, 3.
Charlton T. Lewis, Charles Short, A Latin Dictionary