This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
礠 combines 石 (stone) with 慈, but the historical origin and original meaning are unclear. It may have been a phono-semantic compound with 慈 contributing the sound ジ, but this is uncertain.
The kanji has a stone 石 beside 慈, but no clear meaning emerges from the components. Think of it as a mysterious stone with an unknown purpose.
For ジ, imagine a mysterious stone engraved with the letter 'G': G -> ジ, and the stone sits silently with no known meaning.
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