'trademark' originates from English, specifically the combination of 'trade' and 'mark', where 'trade' meant 'commerce' and 'mark' meant 'sign'.

'trademark' changed from the Old English word 'trēowde' (meaning 'faith') and 'mearc' (meaning 'boundary') and eventually became the modern English word 'trademark'.

Initially, it meant 'a sign of commerce', but over time it evolved into its current meaning of 'a legally registered symbol or word'.