vegetation (n.)youdaoicibaDictYouDict[vegetation 词源字典]
1560s, "act of vegetating," from Middle French végétation and directly from Medieval Latin vegetationem (nominative vegetatio) "a quickening, action of growing," from vegetare "grow, quicken" (see vegetable). Meaning "plant life" first recorded 1727.[vegetation etymology, vegetation origin, 英语词源]