noun
prerogative
prih-RAH-guh-tiv/prɪˈrɑːɡətɪv/
A right or power belonging exclusively to a particular person or group.
Entering the roped-off area is a prerogative reserved for wristband holders.

Etymology
The pieces mean “ask before”: the original privilege belonged to a Roman voting unit selected by lot to vote first. That particular priority broadened into a special right belonging to someone.
In context
Border Protection is a federal prerogative but the governor refuses to give in
More examples
- Choosing the team captain is the coach's prerogative.
- You can decline the invitation; that's your prerogative.
- The constitution limits the governor's prerogatives.
Forms
prerogative · prerogatives