place in Sichuan
澦 is a rare kanji used in a specific Chinese place name in Sichuan. Its standalone meaning is unclear outside that context.
澦 combines the water radical 氵 with 預, likely as a phono-semantic compound where 預 contributes the sound and water relates to the place name. The exact historical development is uncertain.
The water radical 氵 beside 預 suggests a watery place. Picture a specific riverside location in Sichuan marked by this character.
For ヨ, imagine a yo-yo dipping into the water at this Sichuan location: yo -> ヨ, and the water radical 氵 reinforces the scene.
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