mis•pri•sion
n. Mistake; error; misunderstanding.
n. In law: Criminal neglect in respect to the crime of another: used especially in connection with felonies and treason, to indicate a passive complicity, as by concealment, which falls short of the guilt of a principal or accessory.
n. More loosely, any grave offense or misdemeanor having no recognized fixed name, as maladministration in an office of public trust: also termed positive misprision, as distinguished from negative misprision, or mere neglect or concealment.