stanch (chiefly US) or staunch 
/ˈstɑ:ntʃ/ verb
stanch·es or staunch·es; stanched or staunched; stanch·ing or staunch·ing /ˈstɑ:ntʃ/ verb [+ obj] : to stop something (especially blood) from flowing
▪ He used a towel to try to stanch the (flow of) blood. ▪ I applied pressure to stanch the wound. [=to stop the flow of blood from the wound]
▪ He used a towel to try to stanch the (flow of) blood. ▪ I applied pressure to stanch the wound. [=to stop the flow of blood from the wound]
