Precept

An order, writ, warrant, or process. An order or direction, emanating from authority, to an officer or body of officers, commanding that officer or those officers to do some act within the scope of their powers. Rule imposing a standard of conduct or action.

In ENGLISH LAW, the direction issued by a sheriff to the proper returning officers of cities and boroughs within his jurisdiction for the election of members to serve in parliament.

In old French law, a kind of letters issued by the king in subversion of the laws, being orders to the judges to do or tolerate things contrary to law.