About
The character 辊, traditionally written as 輥, is structured with the semantic radical 车, derived from 車 meaning 'vehicle' or 'wheel', and the phonetic component 昆. Its etymology connects it to the idea of rolling or revolving, initially associated with wheeled transport. Over centuries, the meaning narrowed to refer explicitly to rollers and cylinders used in machinery and industry, while the character's form was simplified only in the radical component.
Etymology Hide
