'stomachless' originates from the English word 'stomach' combined with the suffix '-less', where 'stomach' refers to the organ for digesting food and '-less' means 'without'.

'stomach' changed from the Old French word 'estomac', which came from the Latin 'stomachus', and eventually became the modern English word 'stomach'.

Initially, it meant 'without a stomach', and this meaning has largely remained the same in modern usage.