Yes, quench is a Scrabble word!

Verb

1. Satisfy (thirst)

2. Put out, as of fires, flames, or lights

3. Electronics: suppress (sparking) when the current is cut off in an inductive circuit, or suppress (an oscillation or discharge) in a component or device

4. Suppress or crush completely

5. Reduce the degree of (luminescence or phosphorescence) in (excited molecules or a material) by adding a suitable substance

6. Cool (hot metal) by plunging into cold water or other liquid