What is the term for concealing the commission of a felony by someone who knows about it?

The term for concealing the commission of a felony by someone who has knowledge of it is misprision of felony. This concept involves a person who is aware that a felony has been committed but fails to inform the authorities or take any action to report it. Misprision of felony is typically considered a criminal offense because it goes against the obligation to report known criminal activity, thereby enabling the perpetrator to evade justice.

While the other terms relate to different aspects of law and criminal activity, they do not specifically describe the act of concealing knowledge of a felony. An accessory typically refers to someone who assists or contributes to the commission of a crime, but not necessarily to one who simply hides information about it. Subornation of perjury involves persuading someone to lie under oath, which differs from simply knowing about a crime. Obstruction of justice refers generally to any act that impedes the work of law enforcement or the judicial system, but again, it does not specifically focus on the concealment of knowledge regarding a felony. Therefore, misprision of felony is the most accurate term for this situation.