Akademik

Somnolence
Sleepiness, the state of feeling drowsy, ready to fall asleep. A person experiencing somnolence is somnolent and is acting somnolently. Somnolence, somnolent, and somnolently go back to the Latin "somnus" meaning (please don't yawn) "sleep."

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som·no·lence 'säm-nə-lən(t)s n the quality or state of being drowsy

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som·no·lence (somґnə-ləns) [L. somnolentia sleepiness] drowsiness or sleepiness, particularly in excess. somnolent adj

Medical dictionary. 2011.