'divisor' originates from Medieval Latin, specifically the word 'divisor', where 'dividere' meant 'to divide'.

'divisor' changed from the Medieval Latin word 'divisor' and eventually became the modern English word 'divisor'.

Initially, it meant 'one who divides' or 'that which divides', but over time it evolved into its current mathematical meaning of 'a number by which another number is divided'.