Definition of outsleep in English:

outsleep

verb

  • 1with object To sleep beyond (a specified time, etc.). Also occasionally refl.: to oversleep. Now rare.

  • 2with object To sleep (a period of time, etc.) out or to an end; to overcome through sleep; to sleep (something) off.

  • 3with object To sleep longer than.

Origin

Mid 16th century; earliest use found in John Bale (1495–1563), bishop of Ossory, evangelical polemicist, and historian. From out- + sleep.

Pronunciation

outsleep

/ˌaʊtˈsliːp/