'recalculation' originates from Latin, specifically the word 'recalculare,' where 're-' meant 'again' and 'calculare' meant 'to count or reckon.'

'recalculare' transformed into the French word 'recalculer,' and eventually became the modern English word 'recalculate' through Middle English.

Initially, it meant 'to count again,' but over time it evolved into its current meaning of 'to calculate again, often for verification.'