frippery
noun [countable, usually plural, uncountable](plural fripperies)
(especially British English, disapproving)objects, decorations and other items that are considered unnecessary and expensive 不必要的昂贵饰品（或物件） spending money on fripperies 花钱买奢侈品 She never wore perfume, considering it to be mere frippery. 她从不喷香水，认为那只是一件无关紧要的事。
Word Originmid 16th cent. (denoting ‘old or second-hand clothes’): from French friperie, from Old French freperie, from frepe ‘rag’, of unknown ultimate origin.