witches' brew vs motley

witches' brew and motley both are nouns.

Word	Noun	Adjective	Verb	Adverb
witches' brew	Yes	No	No	No
motley	Yes	Yes	Yes	No

As nouns, motley is a hypernym of witches' brew; that is, motley is a word with a broader meaning than witches' brew:

Other hypernyms of witches' brew include assortment, miscellanea, miscellany, mixed bag, mixture, potpourri, salmagundi, smorgasbord, variety.

witches' brew (noun)	motley (noun)
a fearsome mixture	a multicolored woolen fabric woven of mixed threads in 14th to 17th century England
	a garment made of motley (especially a court jester's costume)
	a collection containing a variety of sorts of things

witches' brew (adjective)	motley (adjective)
	having sections or patches colored differently and usually brightly
	consisting of a haphazard assortment of different kinds

witches' brew (verb)	motley (verb)
	make motley; color with different colors
	make something more diverse and varied