'nonexchangeable' originates from the prefix 'non-' meaning 'not' and the word 'exchangeable,' which comes from the Latin 'ex-' meaning 'out' and 'cambiare' meaning 'to exchange.'

'exchangeable' transformed from the Latin word 'cambiabilis' and eventually became the modern English word 'exchangeable.' The prefix 'non-' was added to form 'nonexchangeable.'

Initially, 'exchangeable' meant 'capable of being exchanged,' and with the prefix 'non-,' it evolved to mean 'not capable of being exchanged.'