Tarnish
WordNet

noun


(1)   Discoloration of metal surface caused by oxidation

verb


(2)   Make dirty or spotty, as by exposure to air; also used metaphorically
"The silver was tarnished by the long exposure to the air"
"Her reputation was sullied after the affair with a married man"
WiktionaryText

Noun



  1. Oxidation or discoloration, especially of a decorative metal exposed to air.

Verb



  1. To oxidize or discolor due to oxidation.
    Careful storage of silver will prevent it from tarnishing.
  2. To soil, sully, damage or compromise
    He is afraid that he will tarnish his reputation if he disagrees.
 
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