返璞詞(英語:retronym)是在人類語言的發展過程中某些詞語經過演變,原有詞義產生擴大或變化,為了防止舊義和新義產生混淆,產生的用來專指舊詞義的新詞。通常是對原有的名詞加上新的定語來修飾,與新詞義加以區別。這種形式,亦即反稱

如:

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