cosponsor vs patronize

cosponsor and patronize both are verbs.

Word	Noun	Adjective	Verb	Adverb
cosponsor	No	No	Yes	No
patronize	No	No	Yes	No

As verbs, patronize is a hypernym of cosponsor; that is, patronize is a word with a broader meaning than cosponsor:

Other hypernyms of cosponsor include patronise, sponsor.

cosponsor (verb)	patronize (verb)
sponsor together with another sponsor	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