すましがお
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Alternative spellings |
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澄まし顔 すまし顔 |
From 澄まし (sumashi, “連用形 (ren'yōkei, “stem or continuative form”) of the verb 澄ます (sumasu).”) + 顔 (kao). The kao changes to gao as an instance of rendaku (連濁).
すましがお • (sumashigao) ←すましがほ (sumasigafo)?