'tech-illiterate' originates from the combination of 'tech,' a short form of 'technology,' and 'illiterate,' which comes from Latin 'illiteratus,' meaning 'unlettered or ignorant.'

'illiteratus' transformed into the English word 'illiterate,' and eventually combined with 'tech' to form 'tech-illiterate.'

Initially, 'illiterate' meant 'unable to read or write,' but in this context, it evolved to mean 'lacking knowledge in technology.'