devastation (n.)youdaoicibaDictYouDict[devastation 词源字典]
mid-15c., from Middle French dévastation, from Late Latin devastationem (nominative devastatio), from past participle stem of Latin devastare "lay waste completely," from de- "completely" (see de-) + vastare "lay waste," from vastus "empty, desolate" (see waste (v.)).[devastation etymology, devastation origin, 英语词源]