phytology vs paired

phytology is a noun but paired is not a noun.

Word	Noun	Adjective	Verb	Adverb
phytology	Yes	No	No	No
paired	No	Yes	No	No

phytology (noun)	paired (noun)
the branch of biology that studies plants

phytology (adjective)	paired (adjective)
	of leaves etc; growing in pairs on either side of a stem
	occurring in pairs or as a pair
	matched for breeding