tarnish
Pronunciation:
/ˈtɑɹnɪʃ/noun
Definitions
Oxidation or discoloration, especially of a decorative metal exposed to air.
verb
Definitions
To oxidize or discolor due to oxidation.
Example: Careful storage of silver will prevent it from tarnishing.
To soil, sully, damage or compromise
Example: He is afraid that he will tarnish his reputation if he disagrees.
To lose its lustre or attraction; to become dull.