alter, change, modify - cause to change; make different; cause a transformation; "The advent of the automobile may have altered the growth pattern of the city"; "The discussion has changed my thinking about the issue"

carnalise, sensualise, sensualize, carnalize - debase through carnal gratification

infect - contaminate with ideas or an ideology; "society was infected by racism"

lead astray, lead off - teach immoral behavior to; "It was common practice to lead off the young ones, and teach them bad habits"

whore - corrupt by lewd intercourse

poison - spoil as if by poison; "poison someone's mind"; "poison the atmosphere in the office"

bastardise, bastardize - change something so that its value declines; for example, art forms

suborn - incite to commit a crime or an evil deed; "He suborned his butler to cover up the murder of his wife"