To pollute or ruin somebody's character or dignity. Usually used to mean seducing somebody from their virtue and destroying their honor.
To corrupt, demoralize, humiliate, degrade, contaminate,
bastardize, demean, prostitute, deface, shame,
befoul,
besmirch, disgrace, or defile.
Along with incest with his sisters,
Caligula liked to rape and debauch the wives and daughters of
Rome's senators and
nobles, many of whom he forced to work in his palace brothel. He smugly summoned the wives of his guests away from the dinner table, raped them, and returned them to their husbands and further disgraced the women by bragging about the act.