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somnolent

[som-nuh-luhnt]
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adjective
  1. sleepy; drowsy.
  2. tending to cause sleep.
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Origin of somnolent

1425–75; late Middle English sompnolent < Old French < Latin somnolentus, derivative of somnus sleep; see -ulent
Related formssom·no·lence, som·no·len·cy, nounsom·no·lent·ly, adverbhy·per·som·no·lence, nounhy·per·som·no·lent, adjectivehy·per·som·no·lent·ly, adverbsem·i·som·no·lence, nounsem·i·som·no·lent, adjectivesem·i·som·no·lent·ly, adverbun·som·no·lent, adjectiveun·som·no·lent·ly, adverb

Synonyms for somnolent

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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for somnolent

asleep, drowsy, listless, sleeping, soporific, tired, dozy, snoozy

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British Dictionary definitions for somnolent

somnolent

adjective
  1. drowsy; sleepy
  2. causing drowsiness
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Derived Formssomnolence or somnolency, nounsomnolently, adverb

Word Origin for somnolent

C15: from Latin somnus sleep
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for somnolent

adj.

mid-15c., sompnolent, from Old French sompnolent (Modern French somnolent) or directly from Latin somnolentus "sleepy, drowsy," from somnus "sleep" (see Somnus). Respelled 17c. on Latin model.

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Online Etymology Dictionary, © 2010 Douglas Harper

somnolent in Medicine

somnolent

(sŏmnə-lənt)
adj.
  1. Drowsy; sleepy.
  2. Inducing or tending to induce sleep; soporific.
  3. In a condition of incomplete sleep; semicomatose.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.