What does "drowse" mean?

Drowse: To sleep imperfectly or unsoundly; to slumber; to be heavy with sleepiness; to doze. "He drowsed upon his couch." South. In the pool drowsed the cattle up to their knees. Lowell.

Additional senses

  1. 2.To make heavy with sleepiness or imperfect sleep; to make dull or stupid. Milton.
  2. 3.A slight or imperfect sleep; a doze. But smiled on in a drowse of ecstasy. Mrs. Browning.

Sources