emigrant
n.
"one who quits a country or region to settle in another," 1754, from Latin emigrantem (nominative emigrans), present participle of emigrare "move away" (see emigration). As an adjective in English from 1794.
〔蒋〕[migr=remove，move迁移，-ant表示人] 移居国外者，移民，移出者;[-ant形容词后缀，…的] 移出的，迁移的，移民的