What is debased by the admixture of a foreign substance; adulterated; spurious. -- A*dul"ter*ate*ly, adv. -- A*dul"ter*ate*ness, n called?

adulterate — Debased by the admixture of a foreign substance; adulterated; spurious. -- A*dul"ter*ate*ly, adv. -- A*dul"ter*ate*ness, n. (Webster's 1913.)