cage, (ghost kanji)
槞 is a rare kanji whose core meaning is unclear. It is listed with the gloss 'cage' but is also marked as a ghost kanji, so its actual usage is uncertain.
槞 combines 木 (tree/wood) with 竜 (dragon). The exact historical development is uncertain, and it may be a variant or erroneous form.
Picture a wooden (木) dragon (竜) cage: a cage made of wood to hold a dragon. This matches the given meaning 'cage'.
For ロウ, imagine a low wooden cage: low -> ロウ, and the dragon inside is kept low.
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