What does discolor mean?
To discolor is to undergo, or to cause, an unwanted change in color — a fading, yellowing, staining, or darkening that makes a surface look aged, dirty, or damaged. The verb works both ways: a photograph may discolor over decades in sunlight, or harsh detergent may discolor a favorite shirt after a single wash. Because it implies deterioration rather than intentional coloring, it carries a mildly negative tone and appears most often in discussions of materials, fabrics, metals, skin, and teeth affected by time, light, chemicals, or moisture. Derived forms include the adjective 'discolored', the noun 'discoloration', and the participles 'discoloring' and 'discolored'. The word traces back through French to the Latin 'color', meaning hue or complexion, joined to the negative prefix 'dis-'. Practical and precise, 'discolor' names a small but familiar form of decay that almost every material object eventually suffers.
verbTo change or cause to change in color, typically so as to make something less attractive or no longer uniform in hue. It can describe both the process (something discolors) and its result (something is discolored).
- (of an object or surface) To change color, especially becoming less bright, uniform, or clean-looking.
- To cause something to change color in this way.
"Years of sunlight had discolored the once-vibrant curtains to a pale, uneven yellow."
"The copper roof began to discolor within months of exposure to the elements."
"Do not use bleach on silk, as it will discolor the fabric permanently."
The word 'discolor' literally means to lose its Latin root 'color' — a word so old that Julius Caesar would have recognized it.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of discolor
Discolor entered English in the late Middle English period, formed from the prefix 'dis-' (indicating reversal or removal) combined with 'color', which English had absorbed via Old French 'colour' from the Latin 'color', meaning hue, tint, or complexion. The same Latin root underlies related words such as 'coloration' and 'decolorize'. Its spelling follows the usual British/American divide: British English prefers 'discolour', while American English uses 'discolor'.
Related word forms
How discolor is actually used
Neutral to slightly negative in connotation — it usually implies unwanted or unattractive change rather than deliberate dyeing or tinting. Commonly used of materials affected by age, light, moisture, chemicals, or heat.
Easily confused with discolor
Discolour is simply the British spelling of the same verb, not a different word.
Decouleur is not a standard English word; the correct term for removing color is 'decolorize' or 'decolourise'.