'exchangeable' originates from the Latin word 'exchangere,' where 'ex-' meant 'out' and 'cambiare' meant 'to barter or trade.'

'exchangere' transformed into the Old French word 'eschanger,' and eventually became the modern English word 'exchange' through Middle English.

Initially, it meant 'to trade or barter,' but over time it evolved into its current meaning of 'capable of being exchanged.'