also: ちょうそ
noun, noun or participle which takes 'suru', intransitive verb
second accession to the throne
Historical term for an emperor's second enthronement, often after abdication or a period of retirement. Rare in modern usage.
日本史では、重祚の例として皇極天皇が斉明天皇として再び即位したことが知られている。
In Japanese history, a well-known example of second accession is Emperor Kōgyoku re-ascending the throne as Emperor Saimei.
Standard kanji form; the reading じゅうそ is more common than ちょうそ.
Alternate reading; less common than じゅうそ.
即位 is the general term for accession to the throne, while 重祚 specifically refers to a second accession.
From 重 (repeated) + 祚 (throne). The exact historical derivation is uncertain, but the kanji composition directly reflects the meaning.