This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
猄 combines the animal radical 犭 with 京, but the exact historical development and original meaning are uncertain.
No clear meaning is available, so a mnemonic cannot be reliably formed. The animal radical 犭 suggests a possible animal-related sense, but this is speculative.
For ケイ, imagine a rare animal named Kay: Kay -> ケイ, but since the meaning is unknown, this hook is only a sound cue.
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