Verb
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.
To alter the true complexion or appearance of; to put a false hue upon.
Source: Webster's dictionaryThe shirts discolored Source: Internet
The detergent discolored my shirts Source: Internet
The painting discolored Source: Internet
However, other processes such as decay or insect invasion can also discolor wood, even in woody plants that do not form heartwood, which may lead to confusion. Source: Internet
High carbon stainless steel blades do not discolor or stain, and maintain a sharp edge. Source: Internet
In very high densities ( algal blooms ) these algae may discolor the water and outcompete, poison, or asphyxiate other life forms. Source: Internet