exposit vs exposition

exposit is not a noun while exposition is a noun.

Word	Noun	Adjective	Verb	Adverb
exposit	No	No	Yes	No
exposition	Yes	No	No	No

exposit (noun)	exposition (noun)
	a systematic interpretation or explanation (usually written) of a specific topic
	an account that sets forth the meaning or intent of a writing or discourse
	(music) the section of a movement (especially in sonata form) where the major musical themes first occur
	a collection of things (goods or works of art etc.) for public display

exposit (verb)	exposition (verb)
state
add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing