夷

(historical) Synonym of 蝦夷 (Ezo): an ancient ethnic group attested in the Nihon Shoki that once lived on what is now the Kantō, Hokuriku and Tōhoku regions, likely as far as Hokkaido, possibly related to the Ainu people; dubbed as barbarians or savages by the Yamato

a person living far away from the 都 (miyako, “capital”), loosely translated to bumpkin or hick

(regional, derogatory) a barbarian, savage, especially referring to the 東夷 (azuma-ebisu, “warrior from the eastern parts of Japan”)

(by extension, derogatory) a foreigner