'conformer' originates from the word 'conform,' which comes from Latin 'conformare,' where 'con-' meant 'together' and 'formare' meant 'to form.'

'conformare' transformed into the Old French word 'conformer,' and eventually became the modern English word 'conform' through Middle English.

Initially, it meant 'to shape or form together,' but over time it evolved into its current meaning of 'a molecule with a specific spatial arrangement.'