This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
螇 combines 虫 (insect) with 奚, which likely contributes the sound. The exact historical development is uncertain.
The insect radical 虫 suggests a bug-related meaning, but the overall meaning is unclear. Picture a mysterious insect with a shape like 奚.
For ケイ, imagine a rare insect named 'Kay' that makes a sound like ケイ. Kay -> ケイ, and the bug 虫 is the source of the sound.
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