awning (n.)youdaoicibaDictYouDict[awning 词源字典]
1624, origin uncertain (first recorded use is by Capt. John Smith), perhaps from Middle French auvans, plural of auvent "a sloping roof," "itself of doubtful etym[ology]" (OED). A nautical term only until sense of "cover for windows or porch" emerged 1852.[awning etymology, awning origin, 英语词源]