'adjustation' originates from Latin, specifically the word 'adjustare,' where 'ad-' meant 'toward' and 'justare' meant 'to make right or just.'

'adjustare' transformed into the Old French word 'ajuster,' and eventually became the modern English word 'adjustation' through Middle English.

Initially, it meant 'to make right or just,' but over time it evolved into its current meaning of 'the act of adjusting or the state of being adjusted.'