'disappoint' originates from Old French, specifically the word 'desappointer,' where 'des-' meant 'not' and 'appointer' meant 'appoint.'

'desappointer' transformed into the Middle English word 'disapointen,' and eventually became the modern English word 'disappoint.'

Initially, it meant 'to remove from office,' but over time it evolved into its current meaning of 'to fail to meet expectations.'