mistrust vs discredit

mistrust and discredit both are nouns.

Word	Noun	Adjective	Verb	Adverb
mistrust	Yes	No	Yes	No
discredit	Yes	No	Yes	No

As verbs, discredit is a hypernym of mistrust; that is, discredit is a word with a broader meaning than mistrust:

mistrust: regard as untrustworthy; regard with suspicion; have no faith or confidence in
discredit: reject as false; refuse to accept

Other hypernyms of mistrust include disbelieve.

mistrust (noun)	discredit (noun)
the trait of not trusting others	the state of being held in low esteem
doubt about someone's honesty

mistrust (verb)	discredit (verb)
regard as untrustworthy; regard with suspicion; have no faith or confidence in	reject as false; refuse to accept
	cause to be distrusted or disbelieved
	damage the reputation of