criminate vs reproach

criminate is not a noun while reproach is a noun.

Word	Noun	Adjective	Verb	Adverb
criminate	No	No	Yes	No
reproach	Yes	No	Yes	No

As verbs, reproach is a hyponym of criminate; that is, reproach is a word with a more specific, narrower meaning than criminate:

Other hyponyms of criminate include upbraid, arraign, recriminate, charge, file, lodge.

criminate (noun)	reproach (noun)
	a mild rebuke or criticism
	disgrace or shame

criminate (verb)	reproach (verb)
bring an accusation against; level a charge against	express criticism towards
rebuke formally