Meaning of DISCOLOR in English
vt to alter the true complexion or appearance of; to put a false hue upon.
2. discolor ·vt 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.
Webster English vocab. Английский словарь Webster. 2012