noun
road for persons of high rank
Historical term for a road or path used by high-ranking individuals, especially in the context of the shogun's or emperor's processions during the Edo period. Rare in modern usage.
江戸時代、将軍が通る御成道は特別に整備されていた。
During the Edo period, the road for the shogun's procession was specially maintained.
Compound of 御成 (おなり, 'going out' or 'procession' of a high-ranking person) and 道 (みち, 'road'). The exact historical derivation is uncertain, but the term is associated with the Edo-period practice of maintaining special routes for the shogun's travels.