certify vs certification

certify is not a noun while certification is a noun.

Word	Noun	Adjective	Verb	Adverb
certify	No	No	Yes	No
certification	Yes	No	No	No

certify (noun)	certification (noun)
	the act of certifying or bestowing a franchise on
	validating the authenticity of something or someone
	confirmation that some fact or statement is true through the use of documentary evidence
	a document attesting to the truth of certain stated facts

certify (verb)	certification (verb)
provide evidence for; stand as proof of; show by one's behavior, attitude, or external attributes
declare legally insane
guarantee payment on; of checks
guarantee as meeting a certain standard
authorize officially