misprision n[Anglo-French, error, wrongdoing, from Old French, from mesprendre to make a mistake, from mes- wrongly + prendre to take, from Latin prehendere to seize]
1 : neglectful or wrongful performance of an official duty
2 : a clerical error in a legal proceeding that can be corrected in a summary proceeding
3 : the concealment of a treason or felony and failure to report it to the prosecuting authorities by a person who has not committed it [ of felony] [ of treason]
Source: Merriam-Webster's Dictionary of Law ©1996. Merriam-Webster, Incorporated. Published under license with Merriam-Webster, Incorporated.