'patronize' originates from Latin, specifically the word 'patronus,' where 'patronus' meant 'protector' or 'defender.'

'patronus' transformed into the Old French word 'patroniser,' and eventually became the modern English word 'patronize' through Middle English.

Initially, it meant 'to act as a patron or supporter,' but over time it evolved into its current meaning of 'to treat with an apparent kindness that betrays a feeling of superiority.'