migrate v. 迁移,移居(migr+ate)
migratory a. 移居的,漂泊的(migr+atory)
migrant n. 候鸟,迁移者(migr+ant人或物→迁移的鸟→候鸟)
emigrate v. 移居(外国)(e出+migr+ate→移出)
emigre n. 移居境外者;流亡者(e出+migre移)
immigrate v. 移居;入境(im进+migr+ate→移进)
transmigration n. 移居(trans交换+migr+ation→交换移→移居)
migraine n. 偏头痛(migr+ine→移来移去的[头痛]→偏头痛)