'insist' originates from Latin, specifically the word 'insistere,' where 'in-' meant 'upon' and 'sistere' meant 'to stand.'

'insistere' transformed into the French word 'insister,' and eventually became the modern English word 'insist' through Middle English.

Initially, it meant 'to stand upon something,' but over time it evolved into its current meaning of 'to demand or assert something forcefully.'