'disappointment' originates from the Old French 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 'disappointment'.

Initially, it meant 'to remove from office or position', but over time it evolved into its current meaning of 'a feeling of dissatisfaction'.