quench - verb

• satisfy (thirst)
• put out, as of fires, flames, or lights
• electronics: suppress (sparking) when the current is cut off in an inductive circuit, or suppress (an oscillation or discharge) in a component or device
• suppress or crush completely
• reduce the degree of (luminescence or phosphorescence) in (excited molecules or a material) by adding a suitable substance
• cool (hot metal) by plunging into cold water or other liquid

quench - thesaurus

allay   assuage   extinguish   quell   slake   squelch