About
The character 箔 is a phonosemantic compound: the bamboo radical ⺮ (竹) on top signals the original material, while the phonetic 泊 (bó) below provides the sound and itself means 'to anchor or moor.' The earliest use denoted a screen, curtain, or shallow tray woven from bamboo, commonly employed in silkworm cultivation or as a household partition. Later, the meaning widened to include any thin sheet, especially hammered metal foils such as gold leaf or aluminum foil, which resemble the thin, delicate quality of the original bamboo screens.
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