[dis-uh-kuhs-tuh m]

verb (used with object)

to cause to lose a habit: In the country I was quickly disaccustomed of sleeping late.

Origin of disaccustom

1475–85; < Anglo-French desacustumer; Middle French, Old French. See dis-1, accustom
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British Dictionary definitions for disaccustom



(tr usually foll by to) to cause to lose a habit
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

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

Online Etymology Dictionary, © 2010 Douglas Harper