This radical is understood as an identical variant of "person" 人, and shows a person who stands with the legs apart. - This radical has several varation, i.e. a lying person , a sitting 匕 person.
untanned leather: The raw leather is spliced in two 二 layers with a longer blade丨 of a sword 刀 - The radical 革 stands for tanned leather. The radical 皮 is used for skin.
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