'abnegate' originates from Latin, specifically the word 'abnegare,' where 'ab-' meant 'away' and 'negare' meant 'to deny.'

'abnegare' transformed into the Late Latin word 'abnegatus,' and eventually became the modern English word 'abnegate' through Middle English.

Initially, it meant 'to deny or refuse,' but over time it evolved into its current meaning of 'to renounce or reject something desired or valuable.'