The word for today is…
misprision (noun) – 1. Neglect in performing the duties of public office.
2. (Law) The criminal offense of concealing, or neglecting to report or prevent, a felony or act of treason one had knowledge of but did not participate in.
3. Seditious conduct.
4. (a) Misunderstanding or misinterpretation.
(b) A misreading or misinterpretation of a text, especially as a means of distinguishing oneself from a literary predecessor.
Source : The Free Dictionary
Etymology : Early 15th century, in law, “wrong action; a failure, offense or illegal act,” especially on the part of a public official, from Anglo-French misprisoun, mesprisioun “mistake, error, wrong action or speech,” (Old French mesprision “mistake, wrongdoing, fault, blame, crime”), from mespris, past participle of mesprendre “to mistake, act wrongly, trespass, transgress, break a law,” from mes- “wrongly” + prendre “take,” from Latin prendere, contracted from prehendere “to seize” (from prae- “before,” see pre-, + -hendere, from PIE root *ghend- “to seize, take”).
In general, “criminal neglect in respect to the crime of another,” especially in connection with felonies, to indicate a passive complicity, as by concealment. In 16th century, misprision of treason was used for lesser degrees of guilt (those not subject to capital punishment), especially for knowing of treasonable actions or plots without assenting to them, but not informing the authorities. This led to the common supposition in legal writers that the word means etymologically “failure to denounce” a crime.