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The kanji "卸" is a phono-semantic compound, consisting of a semantic component and a phonetic component. The left side, 止, is a pictograph of a foot, representing the action of stopping or arriving. The right side, 卩, depicts a kneeling figure, which in this context conveys the idea of yielding or submitting. The original meaning was to stop and bow or to lower oneself, signifying a gesture of deference or the act of laying something down. This character evolved from its literal meaning of "to lower" or "to lay down" to the commercial concept of "wholesale." The semantic connection is that a wholesaler "lays down" or "unloads" goods from a cart or ship in large quantities for resale to retailers. The wholesaler sells goods at a "lowered" price compared to the retail price. This commercial application became the primary meaning over time, with the original physical meaning of unloading or lowering becoming less common. "卸" entered Japan with the broader wave of kanji importation, primarily between the 5th and 8th centuries, through Buddhist texts, official documents, and other cultural exchanges with China. It was incorporated into the Japanese writing system, retaining its core meaning related to wholesale trade. The native Japanese kun'yomi "oroshi" also carries the related meanings of "grinding down" (as in "oroshi-gane," grated metal) or "chilling" (as in "oroshi-kōl," a cold draft), further reinforcing the underlying concept of a downward or reducing action that connects the character's etymology to its modern usage.