'perpetrator' originates from Latin, specifically the word 'perpetrator,' where 'per-' meant 'through' and 'patrare' meant 'to bring about or accomplish.'

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

Initially, it meant 'to accomplish or bring about,' but over time it evolved into its current meaning of 'a person who carries out a harmful act.'