'individualize' originates from the Latin word 'individuus,' where 'in-' meant 'not' and 'dividuus' meant 'divisible.'

'individuus' transformed into the French word 'individualiser,' and eventually became the modern English word 'individualize.'

Initially, it meant 'to make something not divisible,' but over time it evolved into its current meaning of 'to make something distinct or unique to an individual.'