元となった辞書の項目
蝦夷
noun
(historical, rare) an ancient ethnic group that once lived on what is now the 関東 (Kantō), 北陸 (Hokuriku) and 東北 (Tōhoku) regions, likely as far as Hokkaido; likely related to the Ainu people
意味（1）
(historical, rare) an ancient ethnic group that once lived on what is now the 関東 (Kantō), 北陸 (Hokuriku) and 東北 (Tōhoku) regions, likely as far as Hokkaido; likely related to the Ainu people
