disordered; disarranged.

Nearby words

  1. derailleur,
  2. derailment,
  3. derain,
  4. derain, andré,
  5. derange,
  6. derangement,
  7. derate,
  8. deration,
  9. deratization,
  10. deratize

Origin of deranged

First recorded in 1780–90; derange + -ed2

Related formsun·de·ranged, adjective



verb (used with object), de·ranged, de·rang·ing.

to throw into disorder; disarrange.
to disturb the condition, action, or function of.
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. 2019

Examples from the Web for deranged

British Dictionary definitions for deranged


verb (tr)

to disturb the order or arrangement of; throw into disorder; disarrange
to disturb the action or operation of
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 deranged
Online Etymology Dictionary, © 2010 Douglas Harper