See more synonyms for derange on
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.

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 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for derange

Historical Examples of derange

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

Word Origin for derange

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.

Online Etymology Dictionary, © 2010 Douglas Harper