taint
noun
a trace of something bad, offensive, or harmful.
Used to describe an action that began in the past, has continued continuously, and is still in progress.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
There’s no word yet about what might have been tainting the president’s mail — but an unnamed federal official said that early tests detected ricin in the Pentagon packages, NBC Washington reports.
From The Verge ● Oct. 2, 2018