somni-

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a combining form meaning “sleep”, used in the formation of compound words: somnifacient.

Nearby words

  1. somnambulance,
  2. somnambulant,
  3. somnambulate,
  4. somnambulation,
  5. somnambulism,
  6. somnifacient,
  7. somniferous,
  8. somniferously,
  9. somnific,
  10. somniloquy

Also especially before a vowel, somn-.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for somn



British Dictionary definitions for somn

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

Word Origin and History for somn

somni-

before vowels somn-, word-forming element meaning "sleep," from comb. form of Latin somnus (see Somnus).

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for somn

somni-

pref.

Sleep:somnambulism.

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