About
The character "鐾" is formed by the metal radical "金" combined with the phonetic component "辟", indicating an original association with metalwork and providing a phonetic cue for its historical pronunciation. Its meaning shifted from a general sense of metal processing to the specific action of whetting or sharpening blades through abrasion. The modern pronunciation bèi diverges from the phonetic indication of "辟", and the character's traditional structure continues to employ these two components.