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somni-

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a combining form meaning “sleep”, used in the formation of compound words: somnifacient.
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SHALL WE PLAY A "SHALL" VS. "SHOULD" CHALLENGE?
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Which form is used to state an obligation or duty someone has?
Also especially before a vowel, somn-.

Origin of somni-

From Latin, combining form of somnus “sleep”
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use somni- in a sentence

  • At the same moment the effect of the somni-chloride began to wear off and the baronet felt a throbbing in his hand.

    Mortmain|Arthur Cheny Train

British Dictionary definitions for somni-

somni-

before a vowel somn-


combining form
sleepsomniferous

Word Origin for somni-

from Latin somnus
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

Medical definitions for somni-

somni-

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