exhort vs exhortation

exhort is not a noun while exhortation is a noun.

Word	Noun	Adjective	Verb	Adverb
exhort	No	No	Yes	No
exhortation	Yes	No	No	No

exhort (noun)	exhortation (noun)
	the act of exhorting; an earnest attempt at persuasion
	a communication intended to urge or persuade the recipients to take some action

exhort (verb)	exhortation (verb)
force or impel in an indicated direction
spur on or encourage especially by cheers and shouts