drowse /ˈdraʊz/
  瞌睡(vi.)打瞌睡(vt.)使瞌睡
  Drowse v. i. [imp. & p. p. Drowsed p. pr. & vb. n. Drowsing.]  To sleep imperfectly or unsoundly; to slumber; to be heavy with sleepiness; to doze. “He drowsed upon his couch.”
     In the pool drowsed the cattle up to their knees.   --Lowell.
  Drowse, v. t. To make heavy with sleepiness or imperfect sleep; to make dull or stupid.
  Drowse, n. A slight or imperfect sleep; a doze.
     But smiled on in a drowse of ecstasy.   --Mrs. Browning.
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  drowse
       n : a light fitful sleep [syn: doze]
       v 1: sleep lightly or for a short period of time [syn: snooze,
            doze]
       2: be on the verge of sleeping; "The students were drowsing in
          the 8 AM class"