Taint (verb / noun) — يُلوث أو يُفسد: To contaminate or spoil; a trace of something bad. Below are 7 words with a similar meaning; the linked ones have full GL Dictionary entries with their meaning in Arabic.
Pollute; corrupt; taint; infect; poison; spoil; defile; adulterate
To make air, water or land dirty and harmful.
A mark that is hard to remove; to mark or discolour; a blot on reputation.
Flaw; defect; imperfection; mark; spot; stain
Dishonest; fraudulent; contaminated; impure; degraded; tainted; spoiled; unethical
To lose shine; to damage a reputation.
spoil