'approximation' originates from Latin, specifically the word 'approximare,' where 'ad-' meant 'to' and 'proximus' meant 'nearest.'

'approximare' transformed into the French word 'approximation,' and eventually became the modern English word 'approximation' through Middle English.

Initially, it meant 'to come near to,' but over time it evolved into its current meaning of 'a value or quantity that is nearly correct.'