patron vs patronise

patron is a noun but patronise is not a noun.

Word	Noun	Adjective	Verb	Adverb
patron	Yes	No	No	No
patronise	No	No	Yes	No

patron (noun)	patronise (noun)
a regular customer
someone who supports or champions something
the proprietor of an inn

patron (verb)	patronise (verb)
	be a regular customer or client of
	treat condescendingly
	assume sponsorship of
	do one's shopping at; do business with; be a customer or client of