discolor

dis·col·or  (ds-klr)

v. dis·col·ored, dis·col·or·ing, dis·col·ors

v.tr.

To alter or spoil the color of; stain.

v.intr.

To become altered or spoiled in color.

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[Middle English discolouren, from Old French discolerer : des-, dis- + colourer, to color (from Latin colrre, from color, color; see color).]

Thesaurus

Verb	1.	discolor - lose color or turn colorless; "The painting discolored" change - undergo a change; become different in essence; losing one's or its original nature; "She changed completely as she grew older"; "The weather changed last night" wash out - lose color in the process of being washed; "The expensive shirt washed out in the German washing machine" color, color in, colorise, colorize, colour in, colourise, colourize, colour - add color to; "The child colored the drawings"; "Fall colored the trees"; "colorize black and white film"
	2.	discolor - cause to lose or change color; "The detergent discolored my shirts" alter, change, modify - cause to change; make different; cause a transformation; "The advent of the automobile may have altered the growth pattern of the city"; "The discussion has changed my thinking about the issue" bleach, bleach out, decolor, decolorise, decolorize, decolour, decolourise, decolourize, discolorise, discolorize, discolourise - remove color from; "The sun bleached the red shirt" sallow - cause to become sallow; "The illness has sallowed her face" wash out - drain off the color in the course of laundering; "The harsh soap washed out the delicate blouse" infuscate - darken with a brownish tinge, as of insect wings
	3.	discolor - change color, often in an undesired manner; "The shirts discolored" discolour, color, colour blush, crimson, flush, redden - turn red, as if in embarrassment or shame; "The girl blushed when a young man whistled as she walked by" blanch, blench, pale - turn pale, as if in fear bronze, tan - get a tan, from wind or sun sunburn, burn - get a sunburn by overexposure to the sun change - undergo a change; become different in essence; losing one's or its original nature; "She changed completely as she grew older"; "The weather changed last night" white, whiten - turn white; "This detergent will whiten your laundry" black, blacken, nigrify, melanise, melanize - make or become black; "The smoke blackened the ceiling"; "The ceiling blackened" turn - change color; "In Vermont, the leaves turn early" silver - turn silver; "The man's hair silvered very attractively" dye - color with dye; "Please dye these shoes" redden - turn red or redder; "The sky reddened" purple - become purple gray, grey - turn grey; "Her hair began to grey" yellow - turn yellow; "The pages of the book began to yellow" tone - change the color or tone of; "tone a negative" green - turn or become green; "The trees are greening" blue - turn blue