noun
purple curtain on the hanging roof above the sumo ring
Sumo term. Refers to the purple curtain that hangs from the tsuriyane (suspended roof) above the dohyō.
水引幕は、土俵の上の吊り屋根から垂れ下がっている紫色の幕です。
The mizuhikimaku is the purple curtain hanging from the suspended roof above the ring.
吊り屋根 is the suspended roof itself, while 水引幕 is the purple curtain attached to it.
Compound of 水引 (mizuhiki, a decorative cord, here referring to the curtain's cord-like appearance) and 幕 (maku, curtain). The exact historical derivation is uncertain.