Denim is tough and hard-wearing; it was first used for miners' work clothes.
Tips
usage
耐 "able to withstand" builds many label words: 耐磨 (wear-resistant), 耐热 (heat-resistant), 耐寒 (cold-hardy), 耐用 (durable). Here 磨 is read mó, "to rub", unlike the mò of 石磨 (stone mill).
