'tech-wary' originates from the combination of 'tech,' a short form of 'technology,' and 'wary,' which comes from Old English 'wær,' meaning 'cautious.'

'wary' changed from the Old English word 'wær' and eventually became the modern English word 'wary.'

Initially, 'wary' meant 'cautious or alert,' and this meaning has largely remained the same in modern usage.