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somniferous

[som-nif-er-uh s, suh m-] /sɒmˈnɪf ər əs, səm-/
adjective
1.
bringing or inducing sleep, as drugs or influences.
Origin
1595-1605
1595-1605; < Latin somnifer inducing sleep (somni-, combining form of somnus sleep + -fer -fer) + -ous
Related forms
somniferously, adverb
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for somniferously

somniferous

/sɒmˈnɪfərəs/
adjective
1.
(rare) tending to induce sleep
Derived Forms
somniferously, adverb
Word Origin
C17: from Latin somnifer (from somnus sleep + ferre to do) + -ous
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for somniferously

somniferous

adj.

"sleep-producing," c.1600, from Latin somnifer, from somni- "sleep" + ferre "to bear" (see infer). With -ous.

Online Etymology Dictionary, © 2010 Douglas Harper
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somniferously in Medicine

somniferous som·nif·er·ous (sŏm-nĭf'ər-əs)
adj.
Inducing sleep; soporific.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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