'cardless' originates from the English word 'card' combined with the suffix '-less,' where 'card' refers to a piece of plastic or paper used for identification or transactions, and '-less' means 'without.'

'card' changed from the Old French word 'carte' and eventually became the modern English word 'card.'

Initially, 'card' referred to a piece of paper or cardboard, but over time it evolved to include plastic cards used for transactions.