pre ‧ rog ‧ a ‧ tive /prɪˈrɒɡətɪv $ -ˈrɑː-/ BrE AmE noun [countable usually singular]
[ Date: 1300-1400 ; Language: French ; Origin: prérogative , from Latin praerogativus 'voting first in a Roman election' , from rogare 'to ask' ]
a right that someone has, especially because of their importance or social position
prerogative of
Education was once the prerogative of the elite.
Arriving late is a woman’s prerogative.
the royal prerogative (=the rights of kings and queens)