|Origin:||Partly from Anglo-French teinter 'to color', from Latin tingere ( TINGE2); partly from Old French ataint, from ataindre ( ATTAIN)|
taint1 [transitive usually passive]
if something bad taints a situation or person, it makes the person or situation seem bad:
Baker argues that his trial was tainted by negative publicity.
to damage something by adding an unwanted substance to it
taint something with something
The water had been tainted with a deadly toxin.