'adjustment' originates from the Old French word 'ajustement', where 'a-' meant 'to' and 'juster' meant 'to fit or join'.

'ajustement' transformed into the English word 'adjustment', and eventually led to the formation of the adjective 'adjustmental'.

Initially, 'adjustment' meant 'to fit or join', but over time it evolved into its current meaning of 'making changes to achieve a desired fit or result'.