praeter-lābor, lapsus, 3, v. dep. n. and a.I.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.—II.Trop., to slip away: (definitio) ante praeterlabitur, quam percepta est, Cic. de Or. 2, 25, 109.