This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
浟 combines 氵 (water) with 攸, which likely contributes the sound. The exact historical meaning is uncertain, and the character is rare in modern Japanese.
With water 氵 on the left and 攸 on the right, imagine a slow, meandering stream whose meaning is unclear, like a forgotten word.
For ユウ, picture a gentle 'you' sound echoing over a quiet, uncertain stream: you -> ユウ, matching the water radical's calm flow.
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