bacchanalyoudaoicibaDictYouDict[bacchanal 词源字典]
1530s (n.); 1540s (adj.), from Latin bacchanalis "having to do with Bacchus" (see Bacchus). Meaning "riotous, drunken roistering; orgy" is from 1711.[bacchanal etymology, bacchanal origin, 英语词源]