Law. to wrest or wring (money, information, etc.) from a person by violence, intimidation, or abuse of authority; obtain by force, torture, threat, or the like. to take illegally by reason of one's office.
to compel (something) of a person or thing: Her wit and intelligence extorted their admiration.
to secure (money, favours, etc) by intimidation, violence, or the misuse of influence or authority
to obtain by importunate demands: the children extorted a promise of a trip to the zoo
to overcharge for (something, esp interest on a loan)