champion's ring-entering ceremony
Sumo term for the ceremonial ring entrance performed by a yokozuna or other high-ranking wrestler, often accompanied by a sword-bearer and dew-sweeper.
The yokozuna's ring-entering ceremony is especially formal among dohyō-iri.
former grand champion's 60th birthday ring-entering ceremony
Formed from 手数, read でず here and referring to the prescribed ceremonial movements, and 入り, as another name for a yokozuna’s ring-entering ceremony.