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As a phono-semantic compound, 闼 uses the semantic component 门 (doorway) to indicate its architectural category, while the inner component 达 serves as the phonetic element. Historically, it referred specifically to a small door within a palace or an inner gate of a large courtyard, not the main outer entrance. Over time, this meaning broadened in literature to encompass palace gates in general or the inner chambers of a royal residence. The traditional form 闥 employs the full radicals 門 and 達, which were simplified to 门 and 达 respectively, maintaining the same structural logic and phonetic-semantic relationship.
Etymology Hide
