expression, ichidan verb
take and spit the water before a sumo bout
Sumo term: a rikishi receives chikara-mizu (power water) from the previous winner, rinses his mouth, and spits it out as a pre-bout ritual.
力士は土俵に上がる前に力水を付ける。
The sumo wrestler takes and spits the water before stepping onto the ring.
Compound of 力水 (chikara-mizu, 'power water') and 付ける (tsukeru, 'to apply/attach'). The exact origin of the ritual is uncertain, but it is a traditional sumo practice.