'complier' originates from the verb 'comply', which comes from the Latin word 'complere', where 'com-' meant 'together' and 'plere' meant 'to fill'.

'complere' transformed into the Old French word 'complir', and eventually became the modern English word 'comply', from which 'complier' is derived.

Initially, 'comply' meant 'to fulfill or complete', but over time it evolved into its current meaning of 'to act in accordance with a wish or command'.