botany vs exogamous

botany is a noun but exogamous is not a noun.

Word	Noun	Adjective	Verb	Adverb
botany	Yes	No	No	No
exogamous	No	Yes	No	No

botany (noun)	exogamous (noun)
the branch of biology that studies plants
all the plant life in a particular region or period

botany (adjective)	exogamous (adjective)
	pertaining to or characterized by the custom of marrying only outside the limits of a clan or tribe
	characterized by or fit for fertilization by a flower that is not closely related