perquisite vs perk

perquisite and perk both are nouns.

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

As nouns, perquisite and perk are synonyms defined as:

perquisite and perk: an incidental benefit awarded for certain types of employment (especially if it is regarded as a right)

Other synonyms of perquisite include fringe benefit.

perquisite (noun)	perk (noun)
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)
an incidental benefit awarded for certain types of employment (especially if it is regarded as a right)

perquisite (verb)	perk (verb)
	gain or regain energy