Possibly from 가물다 (gamulda, “to be blighted with drought”) or 감다 (gamda, "to be black") + -치 (-chi), a suffix often found in fish names. First recorded in the Hunmong Jahoe, 1527, as "가모티."
가물치 • (gamulchi)
- the snakehead, Channa argus.
- (North Korea) a fish caught during a drought, when the water is low
- National Institute of the Korean Language (Naver.com mirror) (accessed 2007-01-22), “가물치”, in 표준국어대사전
- 김, 익수; 박종영 (2002), “가물치”, in 한국의 민물고기, Seoul: Kyo-Hak Publishing, ISBN 89-09-07175-3, page 407