'sweat-preventing' originates from Modern English as a compound of 'sweat' and 'prevent' with the suffix '-ing'. 'sweat' comes from Old English 'swāt' (meaning 'sweat'), while 'prevent' ultimately comes from Latin 'praevenire' through Old French 'prevenir'.

'sweat' comes from Old English 'swāt'; 'prevent' evolved from Latin 'praevenire' > Old French 'prevenir' > Middle English 'preventen', and the modern compound 'sweat-preventing' arose in contemporary English by combining these elements with the verbal/adjectival suffix '-ing'.

Initially, the components meant 'bodily sweat' and 'to come before or stop something in advance'; over time the compound came to mean specifically 'intended to stop or reduce bodily sweating' in product and descriptive usage.