verb (used without object), e·lapsed, e·laps·ing.
- (of time) to slip or pass by: Thirty minutes elapsed before the performance began.
- the passage or termination of a period of time; lapse.
- (intr) (of time) to pass by
1640s, from Middle French elapser, from Latin elapsus, past participle of elabi “slip or glide away, escape,” from ex- “out, away” (see ex-) + labi “to slip, glide” (see lapse (n.)). The noun now corresponding to elapse is lapse. Related: Elapsed; elapsing.