'agister' originates from Old French, specifically the word 'agister,' where 'a-' meant 'to' and 'gister' meant 'to lodge or accommodate.'

'agister' changed from the Old French word 'agister' and eventually became the modern English word 'agister.'

Initially, it meant 'to lodge or accommodate animals,' but over time it evolved into its current meaning of 'an official responsible for livestock management.'