Definition of prerogatival in English:

prerogatival

adjective

rare, historical
  • Of or relating to prerogative, especially (in later use) to the royal prerogative.

Origin

Early 17th century; earliest use found in James Sempill (?1566–1626), courtier and religious controversialist. From prerogative + -al.

Pronunciation

prerogatival

/prɪˌrɒɡəˈtʌɪvl/