extortionate

Of, related to, or typifying extortion (“the practice of obtaining money or other property by the use of force or threats”).

Now it is certain the Roman prieſts are not only ſeemingly very religious and really very extortionate, but are extortionate by means of religion, and make their prayers and maſſes the grand pretence for their exactions.

It is said the daily increase in opium is owing to the negligence of officers in enforcing the interdicts? The laws and enactments are the means which extortionate underlings and worthless vagrants employ to benefit themselves; and the more complete the laws are, the greater and more numerous are the bribes paid to the extortionate underlings, and the more subtle are the schemes of such worthless vagrants.

Greatly exceeding what is moderate or reasonable; exorbitant.

[Y]ou get from farms ſo occupied, houſe lamb, veal, graſs lamb, a little mutton, and leſs beef, whilſt for either article ſeparately, or jointly, you are worked up to pay prices, not leſt than extortionate; […]

[…] I have the satisfaction to think you are in good hands; M. Miret will not be extortionate: the first year's rent you already have in your savings; afterwards Miss Lucy must trust God, and herself.