'indeterminist' originates from the Latin word 'indeterminatus,' where 'in-' meant 'not' and 'determinatus' meant 'determined.'

'indeterminatus' transformed into the French word 'indéterministe,' and eventually became the modern English word 'indeterminist.'

Initially, it meant 'not determined,' but over time it evolved into its current meaning of 'a person who believes in indeterminism.'