antisoporific

soporific

[sop-uh-rif-ik, soh-puh-]
adjective
1.
causing or tending to cause sleep.
2.
pertaining to or characterized by sleep or sleepiness; sleepy; drowsy.
noun
3.
something that causes sleep, as a medicine or drug.

Origin:
1655–65; < Latin sopor sopor + -i- + -fic; compare French soporifique

soporifically, adverb
antisoporific, adjective, noun
nonsoporific, adjective, noun
unsoporific, adjective
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World English Dictionary
soporific (ˌsɒpəˈrɪfɪk)
 
adj
1.  inducing sleep
2.  drowsy; sleepy
 
n
3.  a drug or other agent that induces sleep
 
sopo'rifically
 
adv

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Etymonline
Word Origin & History

soporific
1690, from Fr. soporifique (1687), formed in Fr. from L. sopor (gen. soporis) "deep sleep," from a causative form of the PIE base *swep- "to sleep" (see somnolence).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

soporific sop·o·rif·ic (sŏp'ə-rĭf'ĭk, sō'pə-)
adj.

  1. Inducing or tending to induce sleep.

  2. Sleepy; drowsy.

The American Heritage® Stedman's Medical Dictionary
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