philosophy, clear
嚞 centers on deep understanding and clarity of thought: philosophy and clear insight. The two meanings connect as the pursuit of clear, fundamental truth.
嚞 is a rare character composed of three 吉 (good fortune) elements stacked. The exact historical development is uncertain, but it likely extends the idea of auspiciousness toward clarity or wisdom.
Three 吉 (good fortune) mouths stacked together suggest repeated, clear speech or profound thought—like a philosopher articulating clear ideas.
For テツ, imagine a philosopher named Tetsu who speaks with such clarity that his words stack up like the three 吉 in 嚞: Tetsu -> テツ.
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