soporiferousness

soporiferous

[sop-uh-rif-er-uhs, soh-puh-]
adjective
bringing sleep; soporific.

Origin:
1580–90; < Latin sopōrifer (sopōr-, combining form of sopor sopor + -i- -i- + -fer -fer) + -ous

soporiferously, adverb
soporiferousness, noun
unsoporiferous, adjective
unsoporiferously, adverb
unsoporiferousness, noun
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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WordNet
soporiferous

adjective
1. sleep inducing [syn: soporific
2. inducing mental lethargy; "a narcotic speech" [syn: narcotic
WordNet® 3.0, © 2006 by Princeton University.
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