from The American Heritage® Dictionary of the English Language, 4th Edition

  • intransitive v. To be half-asleep: drowsed in the warm sun.
  • transitive v. To make drowsy: "drowsed with the fume of poppies” ( John Keats).
  • transitive v. To pass (time) by drowsing.
  • n. The condition of being sleepy.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The state of being sleepy and inactive.
  • v. To be sleepy and inactive (also figurative).
  • v. To nod off; to fall asleep.
  • v. To advance drowsily. (Used especially in the phrase "drowse one's way" ⇒ sleepily make one's way.)

from the GNU version of the Collaborative International Dictionary of English

  • n. A slight or imperfect sleep; a doze.
  • intransitive v. To sleep imperfectly or unsoundly; to slumber; to be heavy with sleepiness; to doze.
  • transitive v. To make heavy with sleepiness or imperfect sleep; to make dull or stupid.

from The Century Dictionary and Cyclopedia

  • To be heavy with sleepiness; be half asleep; hence, to be heavy or dull.
  • Synonyms Doze, Slumber, etc. See sleep
  • n. A state of somnolency; a half-sleep.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • v. be on the verge of sleeping
  • v. sleep lightly or for a short period of time
  • n. a light fitful sleep


Perhaps ultimately from Old English drūsian, to sink, be sluggish; see dhreu- in Indo-European roots.
(American Heritage® Dictionary of the English Language, Fourth Edition)



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