'trespass' originates from Old French, specifically the word 'trespasser,' where 'tres-' meant 'beyond' and 'passer' meant 'to pass.'

'trespasser' transformed into the Middle English word 'trespassen,' and eventually became the modern English word 'trespass.'

Initially, it meant 'to pass beyond a boundary,' but over time it evolved into its current meaning of 'to enter someone's land or property without permission.'