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The character "衮" is structured with the "衣" radical indicating clothing and the "公" component, which historically functioned phonetically and carried associations of formality or public display. Etymologically, the term denoted elaborate ceremonial robes worn by high-ranking individuals, and over time its meaning narrowed specifically to the dragon-embroidered garment reserved for the emperor. The traditional form of the character retains this composition, and the semantic shift reflects the garment's exclusive identification with imperial authority.