prerogative

1. A right, especially when due to one's position or role.
2. An exclusive hereditary or official right or privilege.
3. A right or power that is exclusive to a monarch etc, especially such a power to make a decision or judgement. · Despite being a constitutional monarchy, the British sovereign still retain many royal prerogatives.
4. A property, attribute or ability which gives one a superiority or advantage over others; an inherent advantage or privilege; a talent.

الجمع prerogatives