grand ceremony; solemn ceremony
Formal term for a large-scale, dignified ceremony, often used in official or literary contexts.
A grand enthronement ceremony was held.
式典は厳かな盛儀となった。
The ceremony was a solemn and grand occasion.
Compound of 盛 (sei, 'grand, prosperous') and 儀 (gi, 'ceremony, rite'). The exact historical derivation is uncertain, but the kanji combination naturally conveys a grand ceremony.