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

'indeterminatus' transformed into the Medieval Latin word 'indeterminatia,' and eventually became the modern English word 'indeterminacy.'

Initially, it meant 'not determined or fixed,' but over time it evolved into its current meaning of 'uncertainty or vagueness.'