Lewis Short
(verb) : pĕr-haurĭo, si, stum, 4
* Lit., to drain completely, to drink up: calicem uno haustu,App. M. 10, p. 246, 39; Tert. ad Nat. 1, 15.
* Trop.: auribus perhauriendum'st,Plaut. Mil. 1, 1, 34.
Charlton T. Lewis, Charles Short, A Latin Dictionary