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disaccustom

[dis-uh-kuhs-tuh m]
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verb (used with object)
  1. to cause to lose a habit: In the country I was quickly disaccustomed of sleeping late.
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Origin of disaccustom

1475–85; < Anglo-French desacustumer; Middle French, Old French. See dis-1, accustom
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for disaccustom

disaccustom

verb
  1. (tr usually foll by to) to cause to lose a habit
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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 disaccustom

v.

late 15c., from Old French desacostumer "render unfamiliar" (Modern French désaccoutumer), from des- (see dis-) + acostumer (see accustom). Related: Disaccustomed.

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Online Etymology Dictionary, © 2010 Douglas Harper