recherche (adj.)youdaoicibaDictYouDict[recherche 词源字典]
1722, from French recherché "carefully sought out," past participle of rechercher "to seek out" (12c.), from re-, here perhaps suggesting repeated activity (see re-) + chercher "to search," from Latin circare, in Late Latin "to wander hither and thither," from circus "circle" (see circus). Commonly used 19c. of food, styles, etc., to denote obscure excellence.[recherche etymology, recherche origin, 英语词源]