tarnish

However, the government has criticised their portrayal as aimed at tarnishing the country's image, insisting the country is safe.

I learned that oiling the blade prevents humidity from tarnishing the steel.

Will it tarnish Becerra’s image and hurt his campaign for governor?

“It would add to uncertainty, further damage the government’s already tarnished credibility, and complicate any Bank of England’s judgment to potentially offset tax rises with rate cuts.”

"I don't think it's going to damage his career or tarnish his legacy," says 2008 Olympic bronze medallist David Price.