touched by rot or decay; " tainted bacon"; "` corrupt' is archaic"

I trust this may be the last time that I have to assemble you together to drive from amongst us those who are tainted by the curse of heresy. – The Secret Chamber at Chad by Evelyn Everett-Green

The man or woman who sees the beauty of inner purity cannot ever be very deeply tainted by corruption either of body or of soul. – Joyous Gard by Arthur Christopher Benson

Look at the mixed blood of the Whigs, at their tainted ancestors. – Children of the Market Place by Edgar Lee Masters