slake: to satisfy or quench; also, to cause to lessen

My head hit the ground with a satisfying thud; I was exhausted. Three days to go, and I could feel my ribs again. My suitcase was packed, I had the tickets, passport, money, all the usuals. When I got home I'd shove my running gear in the washing machine, and set it on a spin. I wished I could clamber in with it, get rid of every last bit of grime on me. Industrial wash, not delicates. The fucker was going to pay: in three days he'd be dead, and my indeterminate sense of desperation would be slaked. The grass by my ear was tickling me. It felt good.