noun
Yamato state; Yamato polity
Historical term for the earliest known Japanese polity, founded between the 4th and 7th centuries.
大和国家は古墳時代に成立したとされる。
The Yamato state is said to have been established during the Kofun period.
大和国家の政治体制について研究している。
I am researching the political system of the Yamato state.
Compound of 大和 (Yamato, the ancient name for Japan) and 国家 (state, nation). The exact historical derivation is uncertain, but the term refers to the early Japanese polity centered in the Yamato region.