A more thorough explanation:

Definition: A misprisor is someone who commits misprision of felony.

Explanation: Misprision of felony is the act of concealing knowledge of a felony (a serious crime) that has been committed. A misprisor is someone who is aware of a felony but fails to report it to the authorities.

Example: If someone witnesses a murder but does not report it to the police, they are committing misprision of felony and can be considered a misprisor.

Another example: If a person knows that their friend has committed a robbery but does not report it to the police, they are also committing misprision of felony and can be considered a misprisor.

Illustration: In both examples, the individuals are aware of a serious crime but fail to report it to the authorities. This makes them guilty of misprision of felony and therefore a misprisor.