gau (n.)youdaoicibaDictYouDict[gau 词源字典]
ancient German territorial and administrative division, originally comprising several villages, surviving in place names such as Breisgau and Oberammergau; also in gauleiter (with leiter "leader"), title of the local political leaders under the Nazi system. Compare the first element in yeoman.[gau etymology, gau origin, 英语词源]