DISCOLOR

discolor, discolour, colour, color

(verb) change color, often in an undesired manner; “The shirts discolored”

discolor

(verb) cause to lose or change color; “The detergent discolored my shirts”

discolor

(verb) lose color or turn colorless; “The painting discolored”

Source: WordNet® 3.1

Etymology

Verb

discolor (third-person singular simple present discolors, present participle discoloring, simple past and past participle discolored)

(American spelling) To change or lose color.

Source: Wiktionary

Dis*col"or, v. t. [imp. & p. p. Discolored; p. pr. & vb. n. Discoloring.] Etym: [OE. descolouren, OF. descolorer, F. décolorer, fr. L. dis- + cololare, coloratum, to color, color color. See Color.] [Written also discolour.]

1. To alter the natural hue or color of; to change to a different color; to stain; to tinge; as, a drop of wine will discolor water; silver is discolored by sea water.

2. To alter the true complexion or appearance of; to put a false hue upon. To discolor all your ideas. Wat

Source: Webster’s Unabridged Dictionary 1913 Edition