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See more synonyms for derange on Thesaurus.com
verb (used with object), de·ranged, de·rang·ing.
  1. to throw into disorder; disarrange.
  2. to disturb the condition, action, or function of.
  3. to make insane.
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Origin of derange

1770–80; < French déranger, Old French desrengier, equivalent to des- dis-1 + rengier; see range
Related formsde·range·a·ble, adjectivede·rang·er, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words


Examples from the Web for derange

Historical Examples

  • Equilibrium is the Universal, or that which has nothing external to derange it.

    The Book of the Damned

    Charles Fort

  • This does not derange the numbers, since the order of succession is observed.

    A Book for All Readers

    Ainsworth Rand Spofford

  • Any food or medicine that will confine or derange the bowels is to be forbidden.

    The Physical Life of Woman:

    Dr. George H Napheys

  • It was in gasps that he muttered, "Bon jour; excuse me if I derange you."

    The Parisians, Complete

    Edward Bulwer-Lytton

  • Egad, I've got something to derange the best digestion going!

British Dictionary definitions for derange


verb (tr)
  1. to disturb the order or arrangement of; throw into disorder; disarrange
  2. to disturb the action or operation of
  3. to make insane; drive mad
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Word Origin

C18: from Old French desrengier, from des- dis- 1 + reng row, order
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 derange


1776, "throw into confusion," from French déranger, from Old French desrengier "disarrange, throw into disorder," from des- "do the opposite of" (see dis-) + Old French rengier (Modern French ranger) "to put into line," from reng "line, row," from a Germanic source (see rank (n.)). Mental sense first recorded c.1790.

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Online Etymology Dictionary, © 2010 Douglas Harper