It seems there might be a typo in your question, as "mornarcy" does not appear to be a recognized term. If you meant "monarchy," it refers to a form of government where a single person, usually a king or queen, holds supreme authority, often inherited through familial lines. Monarchies can be absolute, where the monarch has almost complete control, or constitutional, where their powers are limited by laws or a constitution. Please clarify if you meant something else!