accreditation vs accredit

accreditation is a noun but accredit is not a noun.

Word	Noun	Adjective	Verb	Adverb
accreditation	Yes	No	No	No
accredit	No	No	Yes	No

accreditation (noun)	accredit (noun)
the act of granting credit or recognition (especially with respect to an educational institution that maintains suitable standards)

accreditation (verb)	accredit (verb)
	ascribe an achievement to
	grant credentials to
	provide or send (envoys or ambassadors) with official credentials