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British Dictionary definitions for discolour

discolour

US discolor

verb
  1. to change or cause to change in colour; fade or stain
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Derived Formsdiscoloration or discolouration, noundiscolourment or US discolorment, noun
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

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Word Origin and History for discolour

v.

chiefly British English spelling of discolor (q.v.); for ending see -or. Related: Discoloured; discolouring; discolouration.

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Online Etymology Dictionary, © 2010 Douglas Harper