ordinance vs ordain

ordinance is a noun but ordain is not a noun.

Word	Noun	Adjective	Verb	Adverb
ordinance	Yes	No	No	No
ordain	No	No	Yes	No

ordinance (noun)	ordain (noun)
the act of ordaining; the act of conferring (or receiving) holy orders
an authoritative command
a statute enacted by a city government

ordinance (verb)	ordain (verb)
	issue an order
	appoint to a clerical posts
	order by virtue of superior authority; decree
	invest with ministerial or priestly authority