swelling, sound of drum
彭 centers on a swelling, resonant sound, especially the deep boom of a drum. The swelling sense extends naturally to physical bulging or expansion.
彭 combines 壴 (a drum) with 彡 (depicting sound waves or swelling lines), representing the resonant sound of a drum or the idea of swelling. The exact historical development is uncertain, but the component relationship is broadly accepted.
The left side 壴 is a drum, and the right side 彡 looks like sound waves or swelling ripples. Picture a drum being struck so hard that the sound visibly swells outward.
For ホウ, imagine a drum booming with a deep 'hoe' sound: hoe -> ホウ, and the swelling drumbeat fills the air.
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