'engine' originates from Latin, specifically the word 'ingenium,' where 'in-' meant 'in' and 'genium' meant 'natural capacity or talent.'

'ingenium' transformed into the Old French word 'engin,' and eventually became the modern English word 'engine' through Middle English.

Initially, it meant 'natural talent or cleverness,' but over time it evolved into its current meaning of 'a machine that converts power into motion.'