D defs.my
Entry 2 senses Webster, 1913

Discolor

/dĭs-kŭl'-ẽr/ · Dis·col·or · IPA /dɪsˈkʰʌlə(ɹ)/
01 v. t. 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…
imp. & p. p. Discolored; p. pr. & vb. n. Discoloring
  1. 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. 2.
    To alter the true complexion or appearance of; to put a false hue upon.
    “To discolor all your ideas.” — Watts.