polluted

Concise Oxford English Dictionary © 2008 Oxford University Press:
pollute/pəˈluːt/

▶verb

• 1 contaminate (water, the air, etc.) with harmful or poisonous substances.

• 2 defile or corrupt.

– derivatives
pollutant adjective & noun,
polluter noun,
pollution noun.

– origin ME: from L. pollut-, polluere ‘pollute, defile’, based on the root of lutum ‘mud’.