exaugural vs valedictory

exaugural is not a noun while valedictory is a noun.

Word	Noun	Adjective	Verb	Adverb
exaugural	No	Yes	No	No
valedictory	Yes	Yes	No	No

exaugural (noun)	valedictory (noun)
	a farewell oration (especially one delivered during graduation exercises by an outstanding member of a graduating class)

exaugural (adjective)	valedictory (adjective)
occurring at or marking the close of a term of office	of or relating to an occasion or expression of farewell
	of a speech expressing leave-taking