also: いでわ
noun
Dewa Province
Historical province name; corresponds roughly to modern Yamagata and Akita prefectures. Used in historical contexts.
出羽国は、現在の山形県と秋田県にあたる。
Dewa Province corresponds to present-day Yamagata and Akita prefectures.
Archaic or dialectal reading; rarely used in modern contexts.
Mutsu Province was another large historical province in the Tōhoku region, located to the north of Dewa.
The name 出羽 (Dewa) is of ancient origin, likely derived from the geographical features or indigenous names of the region. The exact etymology is uncertain.