Left: person 亻, (here: "1"), right: 乙 at second position 乙 (Number 'two' 二 written quickly without lifting the pen.) (If you continue the line of 乙 to the upper left, you get an eight 8)
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 variation, i.e. a lying person , a sitting 匕 person.
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