Left: person 亻, right: strange, odd 奇 (There is a big 大 possibility (opportunity) 可, but it looks strange.) [possibility 可 = The nail 丁 into the opening 口 should be possible.]
Mnemonic
A person has big possibilities, if he can lean on sth.
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.
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