depopulate (v.)youdaoicibaDictYouDict[depopulate 词源字典]
1540s; see de- + populate. Perhaps from Latin depopulatus, past participle of depopulari "to lay waste, ravage." Related: Depopulated; depopulating. Earlier in same sense was dispeplen (early 15c.).[depopulate etymology, depopulate origin, 英语词源]