used in onomatopoeic expression
嚦 is a rare kanji used in onomatopoeic expressions, likely representing a sharp or clear sound. Its standalone meaning is unclear outside of that context.
嚦 combines 口 (mouth) with 歷, which likely contributes the sound. The exact historical development is uncertain, but it is probably a phono-semantic compound where 口 indicates a sound-related meaning.
The mouth radical 口 on the left suggests a sound, and the right side 歷 looks complex like a series of events. Imagine a mouth making a sharp, clear sound that cuts through a long story.
For レキ, imagine a mouth making a crisp 'reck' sound, like a record scratch: reck -> レキ, and the sound is sharp and onomatopoeic.
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