'apronless' originates from English, specifically by combining the word 'apron' and the suffix '-less', where 'apron' comes (via Old French) from 'naperon' and the suffix '-less' meant 'without'.

'apron' changed from Old French word 'naperon' (a diminutive of 'nappe' meaning tablecloth) and, through folk resegmentation of 'a napron' to 'an apron', became the modern English 'apron'; later the English suffix '-less' was added to form 'apronless'.

Initially, 'apron' referred to a small cloth or table covering (a 'small tablecloth'), but over time it evolved into the sense of a protective garment worn over clothing; 'apronless' now means 'without such a garment'.