'abrogator' originates from Latin, specifically the word 'abrogator', where 'ab-' meant 'away' and 'rogare' meant 'to propose a law'.

'abrogator' changed from the Latin word 'abrogator' and eventually became the modern English word 'abrogator'.

Initially, it meant 'one who repeals a law', and this meaning has largely remained the same in modern usage.