To treat as inferior unduly, talk down to, treat condescendingly.(verb)
To make oneself a regular customer of a business.(verb)
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Use "patronise" in a sentence
"The clergyman, the district visitor, the professional slummer -- all the people who "patronise" -- never learn the truth, and they positively invite the wastrel classes to lie."
"Swarmed around to "patronise" him, was the toughest of tough jobs."
"But somehow, it got whispered about that the King had attempted to 'patronise' the poet, and that the poet had very indignantly resented the offered Royal condescension."