Synonyms for tarnish

Noun

1. tarnish, stain, discoloration, discolouration

usage: discoloration of metal surface caused by oxidation

Verb

1. tarnish, stain, maculate, sully, defile, spot, fleck, blob, blot

usage: 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"