pennonyoudaoicibaDictYouDict[pennon 词源字典]
pennon: see pen
[pennon etymology, pennon origin, 英语词源]
pennon (n.)youdaoicibaDictYouDict
long, narrow flag (often triangular or swallow-tailed), late 14c., from Old French penon "feathers of an arrow; streamer, flag, banner," from penne "feather," from Latin penna "feather" (see pen (n.1)).