'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'.

Initially, it meant 'to purify or make pure again', and over time it evolved into its current meaning of 'having or showing well-bred feeling, taste, etc.'.