adulterate in Russian
adulterate in Russian
по́ртить
(transitive) To corrupt, to debase (someone or something).
подме́шивать
(transitive) To make less valuable or spoil (something) by adding impurities or other substances.
разбавля́ть
(transitive) To make less valuable or spoil (something) by adding impurities or other substances.
прелюбоде́йствовать
(transitive, archaic) To commit adultery with (someone).