perdurable (adj.)youdaoicibaDictYouDict[perdurable 词源字典]
mid-13c. (implied in perdurably), from Old French pardurable "eternal, everlasting, perpetual" (12c.), from Late Latin perdurabilis, from perdurare, from per-, intensive prefix, + durare "to endure" (see endure).[perdurable etymology, perdurable origin, 英语词源]