tarnish
verb (used with object)
to dull the luster of (a metallic surface), especially by oxidation; discolor.
Used to describe an ongoing action or state that is currently taking place in the immediate present.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Mon Dieu! mademoiselle, he waxes very angry with me, and complains that I am tarnishing his honor with my villainous schemes for self-advancement.
From Faithful Margaret A Novel by Annie Ashmore