folderol vs hackwork

folderol and hackwork both are nouns.

Word	Noun	Adjective	Verb	Adverb
folderol	Yes	No	No	No
hackwork	Yes	No	No	No

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

folderol: nonsensical talk or writing
hackwork: (Literary & Literary Critical Terms) undistinguished literary work produced to order.

folderol (noun)	hackwork (noun)
nonsensical talk or writing	professional work done according to formula
	(Literary & Literary Critical Terms) undistinguished literary work produced to order.