'touch-sensitive' originates from the combination of 'touch' and 'sensitive', where 'touch' refers to the act of coming into contact with something, and 'sensitive' means easily affected by external stimuli.

'Touch' and 'sensitive' have been used in English since the Middle Ages, with 'touch' deriving from Old French 'toucher' and 'sensitive' from Latin 'sensitivus'.

Initially, 'sensitive' meant 'capable of sensation', but over time it evolved to mean 'easily affected by external stimuli'.