/oh'veuhr sleep"/ , v. , overslept, oversleeping .
v.i.
1. to sleep beyond the proper or intended time of waking: He overslept and missed his train.
v.t.
2. to sleep beyond (a certain hour): She had overslept her usual time of arising.
3. to let (oneself) sleep past the hour of arising: Of all mornings to oversleep myself!
[ 1350-1400; ME; see OVER-, SLEEP ]