An act done with an intent to give some advantage inconsistent with official duty and the rights of others. It includes bribery, but is more comprehensive; because an act may be corruptly done, though the advantage to be derived from it be not offered by another. Merl. Rep. h. t. 2. By corruption, sometimes, is understood something against law; as, a contract by which the borrower agreed to pay the lender usurious interest. It is said, in such case, that it was corruptly agreed.
Law Dictionary – Alternative Legal Definition
Illegality; a vicious and fraudulent intention to evade the prohibitions of the law. The act of an ofilclal or fiduciary person who unlawfully and wrongfully uses his station or character to procure some benefit for himself or for another person, contrary to duty and the rights of others.