SudanyoudaoicibaDictYouDict[Sudan 词源字典]
1842, from Arabic Bilad-al-sudan, literally "country of the blacks" (originally the stretch of Africa between the Sahara and the equator), from sud, plural of aswad (fem. sauda) "black." In early use also Soudan, from French. Related: Sudanese.[Sudan etymology, Sudan origin, 英语词源]
sudarium (n.)youdaoicibaDictYouDict
"napkin for wiping the face," especially the cloth of St. Veronica, on which an image of Christ's face was believed to be imprinted, c. 1600, from Latin sudare "to sweat," from sudor "sweat" (see sweat (n.)). Earlier in nativized form sudary (mid-14c.).
sudatorium (n.)youdaoicibaDictYouDict
"room in a bath for sweating," 1756, from Latin sudatus, past participle of sudare "to sweat," from sudor "sweat" (see sweat (v.)) + -orium (see -ory).