Stanch \STONCH; STANCH\, transitive verb:
To stop the flowing of; to check in its course; also, to stop the flowing of blood from; as, “to stanch a wound.”

Out of the corner of my eye I can see one of Shiggy’s daughters busy at the rear door with a mop and a mountain of napkins, furious activity, but not enough to stanch the flow of water seeping inexorably into the room.
— T. Coraghessan Boyle, A Friend of the Earth

Otherwise Stalin might have feared that President Harry Truman would stanch any North Korean invasion by threatening to use atomic weapons.
— John Earl Haynes and Harvey Klehr, Venona: Decoding Soviet Espionage in America

Stanch is from Old French estancher, “to stop a liquid from flowing.” Entry and Pronunciation for stanch

Oh, god. I want to stanch the bleeding from my eyes and ears!