misuse vs usage

misuse and usage both are nouns.

Word	Noun	Adjective	Verb	Adverb
misuse	Yes	No	Yes	No
usage	Yes	No	No	No

As nouns, usage is a hypernym of misuse; that is, usage is a word with a broader meaning than misuse:

Other hypernyms of misuse include employment, exercise, use, utilisation, utilization.

misuse (noun)	usage (noun)
improper or excessive use	the act of using
	accepted or habitual practice
	the customary manner in which a language (or a form of a language) is spoken or written

misuse (verb)	usage (verb)
change the inherent purpose or function of something
apply to a wrong thing or person; apply badly or incorrectly