'appointment' originates from Old French, specifically the word 'apointement', where 'apointer' meant 'to arrange' or 'to fix'.

'apointement' transformed into the Middle English word 'apoyntement', and eventually became the modern English word 'appointment'.

Initially, it meant 'an arrangement or agreement', but over time it evolved into its current meanings of 'a meeting arrangement' and 'a job assignment'.