mishmash vs miscellany

mishmash and miscellany both are nouns.

Word	Noun	Adjective	Verb	Adverb
mishmash	Yes	No	No	No
miscellany	Yes	No	No	No

As nouns, miscellany is a hypernym of mishmash; that is, miscellany is a word with a broader meaning than mishmash:

Other hypernyms of mishmash include assortment, miscellanea, mixed bag, mixture, motley, potpourri, salmagundi, smorgasbord, variety.

mishmash (noun)	miscellany (noun)
a motley assortment of things	an anthology of short literary pieces and poems and ballads etc.
	a collection containing a variety of sorts of things