Lewis Short
praeter-lābor, lapsus, 3
* V. dep. n. and a.
* Lit., to glide or flow by, to fly or run past: praeterlabentia flumina,Quint. 10, 3, 24.—With acc.: tumulum,Verg. A. 6, 874: hanc (tellurem) pelago praeterlabare necesse est,to sail past,id. ib. 3, 478.
* Trop., to slip away: (definitio) ante praeterlabitur, quam percepta est,Cic. de Or. 2, 25, 109.
Charlton T. Lewis, Charles Short, A Latin Dictionary