must vs requisite

must and requisite both are nouns.

Word	Noun	Adjective	Verb	Adverb
must	Yes	Yes	No	No
requisite	Yes	Yes	No	No

As nouns, requisite is a hypernym of must; that is, requisite is a word with a broader meaning than must:

Other hypernyms of must include essential, necessary, necessity, requirement.

must (noun)	requisite (noun)
the quality of smelling or tasting old or stale or mouldy	anything indispensable
grape juice before or during fermentation
a necessary or essential thing

must (adjective)	requisite (adjective)
highly recommended	necessary for relief or supply