patronage (n.)youdaoicibaDictYouDict[patronage 词源字典]
late 14c., "right of presenting a qualified person to a church benefice," from Old French patronage (14c.) from patron (see patron). Secular sense of "action of giving influential support" is from 1550s. General sense of "power to give jobs or favors" is from 1769; meaning "regular business of customers" is 1804.[patronage etymology, patronage origin, 英语词源]
patronize (v.)youdaoicibaDictYouDict
1580s, "to act as a patron towards," from patron + -ize, or from Old French patroniser. Meaning "treat in a condescending way" is first attested 1797; sense of "give regular business to" is from 1801. Related: Patronized; patronizing.