adversariayoudaoicibaDictYouDict[adversaria 词源字典]
"With plural concord: miscellaneous remarks and observations; notes, miscellanea. With singular concord: a book consisting of these, a commonplace book", Late 16th cent. From classical Latin adversāria things written on one side of the page, notes, observations (Cicero), in post-classical Latin also commonplace book, use as noun (short for scripta adversāria) of neuter plural of adversārius.[adversaria etymology, adversaria origin, 英语词源]