over-populate (v.)youdaoicibaDictYouDict[over-populate 词源字典]
also overpopulate, "to overrun with too many people," 1828 (implied in overpopulated), from over- + populate (v.). Related: Overpopulating. Over-populous "over-populated" is attested from 1670s.[over-populate etymology, over-populate origin, 英语词源]