folly vs buffoonery

folly and buffoonery both are nouns.

Word	Noun	Adjective	Verb	Adverb
folly	Yes	No	No	No
buffoonery	Yes	No	No	No

As nouns, buffoonery is a hyponym of folly; that is, buffoonery is a word with a more specific, narrower meaning than folly:

Other hyponyms of folly include meshugaas, mishegaas, mishegoss, clowning, frivolity, harlequinade, japery, prank.

folly (noun)	buffoonery (noun)
foolish or senseless behavior	acting like a clown or buffoon
a stupid mistake
the trait of acting stupidly or rashly
the quality of being rash and foolish