'isomerization' originates from the Greek word 'isomerēs,' where 'iso-' meant 'equal' and 'meros' meant 'part.'

'isomerēs' transformed into the French word 'isomérisation,' and eventually became the modern English word 'isomerization.'

Initially, it meant 'equal parts,' but over time it evolved into its current meaning of 'the process of converting one isomer into another.'