prō-lābor lapsus, ī, to glide forward, slide along, slip: at Canis ad caudam serpens prolabitur Argo, C. poet.: conlapsus pons, usque ad alterius initium pontis prolabi eum leniter cogebat, to slide along, L.

—To fall forward, tumble, fall in ruins: equus cum prolapsum per caput regem effudisset, who fell headlong, L.: prolabens ex equo, L.: pro lapsa Pergama, ruined, V.: ipsis adminiculis prolapsis corruere, sliding from under them, L.

—Fig., to go forward, be led on: me longius prolapsum esse, quam, etc., have spoken at more length: in misericordiam prolapsus est animus victoris, L.

— To slip out, escape: ab aliquā cupiditate prolapsum verbum.

—To fall, fail, err, be led astray: timore: cupiditate regni, L.

—To fall to decay, sink, decline, go to ruin: ita prolapsa est (iuventus) ut coercenda sit: rem temeritate eius prolapsam restituit, L.