This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
The exact historical development of 邥 is uncertain. It combines 冘 with the city/wall component ⻏, but the original meaning and origin are unclear.
Since the meaning is unclear, focus on the shape: 冘 beside a city wall ⻏. It might suggest something related to a place or a name, but no specific meaning is known.
For シン, imagine a shin (shin) guard leaning against a city wall: shin -> シン, and the guard rests by the wall.
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