'refined' originates from the Latin word 'refinire,' where 're-' meant 'again' and 'finire' meant 'to finish or end.'

'refinire' transformed into the Old French word 'refiner,' and eventually became the modern English word 'refine' through Middle English.

Initially, it meant 'to purify or make pure again,' but over time it evolved into its current meaning of 'to improve or perfect.'