discolor

UK: /dɪsˈkʌlə^r/ US: /dɪsˈkʌlɚ/ ,(dis kul′ər)

WordReference Random House Learner's Dictionary of American English © 2026

dis•col•or /dɪsˈkʌlɚ/   v. 

1. to (cause to) spoil the color (of); fade or stain: [no object]
   The carpet had discolored over the years.
   [~ + object]
   Water discolored the carpet.

dis•col•or•a•tion /dɪsˌkʌləˈreɪʃən/  n. 

[uncountable] The carpet showed discoloration due to age.

[countable] an ugly discoloration on the fruit.

WordReference Random House Unabridged Dictionary of American English © 2026

dis•col•or  (dis kul′ər), v.t. 

1. to change or spoil the color of;
   fade or stain.

v.i. 

2. to change color;
   become faded or stained.

• Late Latin discolorārī to change color, derivative of Latin discolor of another color. See dis-¹, color
• Old French descolorer
• Middle English discolouren 1350–1400

Collins Concise English Dictionary © HarperCollins Publishers::

discolour, discolor / dɪsˈkʌlə/ verb

1. to change or cause to change in colour; fade or stain

disˌcolorˈation, disˌcolourˈation noun