Writ
In its earliest form a writ was simply a written order made by the English king to a specified person to undertake a specified action. For example in the feudal era a military summons by the king to one of his tenants-in-chief to appear dressed for battle with his knights at a certain place and time. An early usage survives in the United Kingdom. Also in Canada in a writ of election. This was is a written order issued on behalf of the monarch (in Canada, the Governor General) to local officials (High Sheriffs of every county in historical UK) to hold a general election. Writs were used by the medieval English kings to summon persons to Parliament.