wren (n.)youdaoicibaDictYouDict[wren 词源字典]
small, migratory singing bird, Old English wrenna, metathesis variation of earlier werna, a Germanic word of uncertain origin. Compare Icelandic rindill, Old High German wrendo, wrendilo "wren." The bird's name in other languages usually denotes "royalty" (such as Latin regulus), in reference to its golden crest.[wren etymology, wren origin, 英语词源]