discolor
verb
dis·col·or (ˌ)dis-ˈkə-lər 
discolored; discoloring; discolors
transitive verb
: to alter or change the hue or color of
intransitive verb
: to change color especially for the worse
Example Sentences
The fabric is guaranteed not to discolor. The wine stain discolored the rug.
Recent Examples on the Web Sun exposure can discolor the finish and dry the wood, while snow and rain can lead to warping or rot over time. 
Nafeesah Allen, Better Homes & Gardens, 17 June 2022 Dust, sweat, lotion, food, and dirt can affect the way your watch band looks and dull or discolor the material. Nafeesah Allen, Better Homes & Gardens, 16 June 2022 Lettuce and other greens, as well as some herbs, can also discolor or droop in the presence of ethylene. Becky Krystal, Washington Post, 31 May 2022 Not even one year later, the sink started to discolor near the drain. Mark Philben, BostonGlobe.com, 15 May 2022 Why does the sink discolor yet the toilet does not? Mark Philben, BostonGlobe.com, 15 May 2022 It's usually recommended that people avoid certain foods and beverages that could stain or discolor the veneers like coffee, tea, or red wine, the ADA says. Korin Miller, Health.com, 9 Dec. 2021 Try to keep them out of bright direct light and avoid spaces with high moisture, both of which could discolor the plants faster, Marino advised. Lindsey M. Roberts, BostonGlobe.com, 14 Nov. 2021 Try to keep them out of bright direct light and avoid spaces with high moisture, both of which could discolor the plants faster, Marino advises. Washington Post, 19 Oct. 2021 See More
Nafeesah Allen, Better Homes & Gardens, 17 June 2022 Dust, sweat, lotion, food, and dirt can affect the way your watch band looks and dull or discolor the material. Nafeesah Allen, Better Homes & Gardens, 16 June 2022 Lettuce and other greens, as well as some herbs, can also discolor or droop in the presence of ethylene. Becky Krystal, Washington Post, 31 May 2022 Not even one year later, the sink started to discolor near the drain. Mark Philben, BostonGlobe.com, 15 May 2022 Why does the sink discolor yet the toilet does not? Mark Philben, BostonGlobe.com, 15 May 2022 It's usually recommended that people avoid certain foods and beverages that could stain or discolor the veneers like coffee, tea, or red wine, the ADA says. Korin Miller, Health.com, 9 Dec. 2021 Try to keep them out of bright direct light and avoid spaces with high moisture, both of which could discolor the plants faster, Marino advised. Lindsey M. Roberts, BostonGlobe.com, 14 Nov. 2021 Try to keep them out of bright direct light and avoid spaces with high moisture, both of which could discolor the plants faster, Marino advises. Washington Post, 19 Oct. 2021 See More Word History
Etymology
Middle English discolouren, from Anglo-French desculurer, from Late Latin discolorari, from Latin discolor of another color, from dis- + color color
First Known Use
14th century, in the meaning defined at transitive sense
Kids Definition
discolor
verb
dis·col·or dis-ˈkə-lər
discolored; discoloring
: to change in color especially for the worse
discolor
verb
as in to tarnish
Synonyms & Similar Words
Relevance
- tarnish
- smudge
- stain
- mar
- smear
- blacken
- sully
- soil
- tar
- pollute
- darken
- dirty
- taint
- degrade
- smirch
- besmirch
- smut
- spoil
- cloud
- blemish
- blur
- besmear
- poison
- vitiate
- debase
- dishonor
- disgrace
- shame
- cheapen
- demean
- touch
- discredit
- abase
- begrime
- distort
- color
- subvert
- deprave
- foul
- lower
- sink
- debauch
- demoralize
- corrupt
- pervert
- bastardize
- twist
Antonyms & Near Antonyms
- cleanse
- purify
- elevate
- magnify
- glorify
- dignify
- uplift
- ennoble
- enshrine
- hallow