About
The character 磙 (gǔn) is a phono-semantic compound, with the semantic radical 石 (stone) on the left indicating its material, and the phonetic component 衮 (gǔn) on the right providing its pronunciation. It specifically refers to a heavy, cylindrical stone roller used in traditional agriculture to flatten or compact soil before planting, or to thresh grain. As a tool whose function depends on circular motion, the character is inherently linked to the concept of rolling.