patronize vs buy at

patronize and buy at both are verbs.

Word	Noun	Adjective	Verb	Adverb
patronize	No	No	Yes	No
buy at	No	No	Yes	No

As verbs, patronize and buy at are synonyms defined as:

patronize and buy at: do one's shopping at; do business with; be a customer or client of

Other synonyms of patronize include frequent, patronise, shop, shop at, sponsor.

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