perquisite vs prerogative

perquisite and prerogative both are nouns.

Word	Noun	Adjective	Verb	Adverb
perquisite	Yes	No	No	No
prerogative	Yes	No	No	No

As nouns, perquisite and prerogative are synonyms defined as:

perquisite and prerogative: a right reserved exclusively by a particular person or group (especially a hereditary or official right)

Other synonyms of perquisite include exclusive right, privilege.

perquisite (noun)	prerogative (noun)
a right reserved exclusively by a particular person or group (especially a hereditary or official right)	a right reserved exclusively by a particular person or group (especially a hereditary or official right)
an incidental benefit awarded for certain types of employment (especially if it is regarded as a right)