'耐磨' (nàimó) is a compound adjective meaning 'wear-resistant' or 'abrasion-resistant'. It combines two characters: 耐 (nài), meaning 'to withstand' or 'to endure', and 磨 (mó), meaning 'to rub', 'to grind', or 'abrasion'. Together, they literally convey the ability to 'withstand rubbing/friction' — describing materials that resist damage from repeated physical contact, scraping, or erosion over time.

This term is widely used in technical, industrial, and everyday contexts involving durability — especially for shoes, flooring, machinery parts, tools, and textiles. While it functions adjectivally (e.g., 耐磨鞋底), it rarely stands alone as a noun; instead, it modifies nouns directly or appears in phrases like 耐磨性 (nàimóxìng, 'wear resistance', a noun). It’s neutral in register and common in both spoken and written Chinese when discussing product quality or material properties.