ill
癙 centers on being ill or sick. The single given meaning is straightforward, with no broader conceptual cluster.
癙 combines the sickness radical 疒 with 鼠 (rat/mouse), likely as a phono-semantic compound where 鼠 contributes the sound and the idea of a rat-like illness or condition. The exact historical development is uncertain.
The sickness enclosure 疒 wraps around a rat 鼠. Picture a rat carrying disease, making someone ill.
For ショ, imagine a sick rat being shown to a doctor: show -> ショ, and the rat's illness is revealed.
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