This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
The exact historical development is uncertain. The modern form combines 取 and 土, but the original semantic or phonetic role of these components is unclear.
With 取 (take) over 土 (earth), imagine taking earth or soil, but the true meaning is unknown.
For キョ, picture a giant key (キョ) stuck in the earth (土) that you try to take (取) out.
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