misuse (n.) Look up misuse at Dictionary.com
late 14c., from mis- (1) + use (n.). It aligns with the older sense of the verb misuse.
misuse (v.) Look up misuse at Dictionary.com
late 14c., "to use improperly;" see mis- (1) + use (v.). Meaning "to subject to ill-treatment" is attested from 1530s. Related: Misused; misusing.