killing of a fish by placing it in ice, favored for preserving freshness

to kill a fish by placing it in ice

to keep up; to retain / to maintain

fresh

freshness

魚: fish

凍る: to freeze

(archaic) county, district

古音: an ancient pronunciation of a word / 鼓音: a drum-like sound, caused by percussion or tapping of the body during a medical examination

氷菓子: candy made from ingredients such as dairy, juice, egg, and sugar water (e.g. ice pop, sherbert, etc and in a wider sense, including ice cream)