This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
狖 combines the animal radical 犭 with 穴 (hole/cave). The exact historical origin is uncertain, but it likely referred to a cave-dwelling animal.
The animal radical 犭 beside a cave 穴 suggests a creature that lives in a hole, but its exact meaning is unclear.
For ユウ, imagine a you (ユウ) peering into a dark cave where the mysterious animal hides: you -> ユウ, and the cave-dwelling creature stays hidden.
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