noun
sumo performed at the ancient imperial court
Historical term for sumo matches held as court ceremonies, particularly during the Heian period. Not used for modern sumo.
節会相撲は、平安時代の宮中行事の一つだった。
Sechie-zumō was one of the court events of the Heian period.
Modern sumo wrestling in general. 節会相撲 refers specifically to the ancient court version.
From 節会 (sechie, 'seasonal court banquet') + 相撲 (sumō, 'sumo'). The exact historical derivation is uncertain, but the term refers to sumo performed at such banquets.