'cauterization' originates from Greek, specifically the word 'kautērion,' where 'kaut-' meant 'to burn.'

'kautērion' transformed into the Latin word 'cauterizare,' and eventually became the modern English word 'cauterization' through Old French 'cauteriser.'

Initially, it meant 'to burn or sear,' and this meaning has largely remained the same in modern usage.