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sedate

[si-deyt]
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adjective
  1. calm, quiet, or composed; undisturbed by passion or excitement: a sedate party; a sedate horse.
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verb (used with object), se·dat·ed, se·dat·ing.
  1. to put (a person) under sedation.
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Origin of sedate

1640–50; < Latin sēdātus (past participle of sēdāre to allay, quieten); akin to sedēre to sit1
Related formsse·date·ly, adverbse·date·ness, nounun·se·date, adjectiveun·se·date·ly, adverbun·se·date·ness, noun

Synonyms

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1. collected, serene, unruffled, unperturbed. See staid.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for sedateness

Historical Examples

  • Let us then, my Imogen, compose ourselves to the sedateness of despair.

    Imogen

    William Godwin

  • Their simplicity, fervor, and sedateness had won his regard.

  • Despite her sedateness she had unmistakably the air of waiting at a tryst.

    The Roll-Call

    Arnold Bennett

  • She again noticed my sedateness, and inquired into the cause.

    Arthur Mervyn

    Charles Brockden Brown

  • She felt too young for the sedateness into which her life was settling.

    Married Life

    May Edginton


British Dictionary definitions for sedateness

sedate1

adjective
  1. habitually calm and composed in manner; serene
  2. staid, sober, or decorous
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Derived Formssedately, adverbsedateness, noun

Word Origin

C17: from Latin sēdāre to soothe; related to sedēre to sit

sedate2

verb
  1. (tr) to administer a sedative to
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Word Origin

C20: back formation from sedative
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 sedateness

sedate

adj.

"calm, quiet," 1660s, from Latin sedatus "composed, moderate, quiet, tranquil," past participle of sedare "to settle, calm," causative of sedere "to sit" (see sedentary). Related: Sedately.

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sedate

v.

"treat with sedatives," 1945, a back-formation from the noun derivative of sedative (adj.). The word also existed 17c. in a sense "make calm or quiet." Related: Sedated; sedating.

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Online Etymology Dictionary, © 2010 Douglas Harper

sedateness in Medicine

sedate

(sĭ-dāt)
v.
  1. To administer a sedative to; calm or relieve by means of a sedative drug.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.