"Misprison," n.
b. Law (now hist. in some jurisdictions). In full misprision of treason, misprision of felony. Originally: an offence similar to but less serious than treason or felony. Now usually: the crime of (deliberately) concealing one's knowledge of a treasonable act or of a felony.
d. Literary Criticism. Harold Bloom's term for: (an) unconscious misreading or misinterpretation of a text.