1
peoples formerly of northern Japan with distinct language and culture (i.e. the Ainu)
See also:
蝦夷 (えみし)
2
provincial (i.e. a person who lives far from the city)
3
brutish, unsophisticated warrior (esp. used by Kyoto samurai to refer to samurai from eastern Japan)
4
foreigner;barbarian
Other forms
戎 【えびす】