How do you spell Patronizing

Available Definitions:
1)  a. - Showing condescending favor; assuming the manner of airs of a superior toward another.
2)  v. t. - To trade with customarily; to frequent as a customer.
3)  v. t. - To assume the air of a patron, or of a superior and protector, toward; -- used in an unfavorable sense; as, to patronize one's equals.