This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
The exact historical development of 芀 is uncertain. It visually combines 艹 (grass) and 刀 (knife), but the original semantic or phonetic motivation is unclear.
Its standalone meaning is unclear. The shape suggests grass 艹 and a knife 刀, but no clear meaning emerges from these components.
For チョウ, imagine a grass knife named Chou: Chou -> チョウ, a made-up name for a blade used to cut grass.
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