[かずく;かづく, kazuku ; kaduku] (v5k) (1) (uk) (arch) to be underwater from the neck down; to collect shells, seaweed, etc. by diving under the water; (2) to force something under the surface of the water
[ひそめる, hisomeru] (v1, vt) (1) to hide; to conceal; (2) to lower volume (of a sound or one's voice) so as not to be heard; (3) to become quiet and inconspicuous