About
镦 (dūn) is the simplified form of the traditional character 鐓. As a phono-semantic compound, it denotes a metal ferrule or the heavy butt end of a spear or halberd. Its structure combines the semantic radical 钅 (jīn), indicating a connection to metals, with the phonetic component 敦 (dūn), which provides the pronunciation. The traditional form 鐓 uses the metal radical 釒 but follows the same logic. Beyond its historical military use for protective weapon caps, the character also developed a technical metallurgical meaning: the process of upsetting or thickening metal through forging. Its usage remains confined to mechanical and martial contexts.
Etymology Hide
