fin de siecle (adj.)youdaoicibaDictYouDict[fin de siecle 词源字典]
1890, from French fin de siècle "end of century," phrase used as an adjective. At the time it meant "modern;" now it means "from the 1890s." "App. first in title of a comedy, Paris fin de siècle, produced at the Gymnase, Feb. 1890" [Weekley]. French siècle "century, age" is from Latin saeculum (see secular).[fin de siecle etymology, fin de siecle origin, 英语词源]