masque (n.)youdaoicibaDictYouDict[masque 词源字典]
"masquerade, masked ball," 1510s, from Middle French masque; see mask (n.), with which it was originally identical. It developed a special sense of "amateur theatrical performance" (1560s) in Elizabethan times, when such entertainments (originally performed in masks) were popular among the nobility.[masque etymology, masque origin, 英语词源]