jewel
礇 centers on a jewel, specifically a precious stone or gem. The meaning is narrow and concrete, without abstract extensions.
礇 combines 石 (stone) with 奧, which likely contributes the sound. The structure suggests a type of stone or jewel, but the exact historical development is uncertain.
The left side is 石 (stone), and the right side is 奧 (a complex shape suggesting something deep or inner). Imagine a deep cave where a precious jewel stone is hidden.
For イク, picture an iku (行く, to go) deep into a cave to find the jewel stone: iku -> イク, and the journey leads to the gem.
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