aslake \əˈslāk\transitive verb (-ed/-ing/-s) Etymology: Middle English aslaken, from Old English āslacian to become or make slack, diminish, loosen, from ā- (perfective prefix) + slacian to slacken — more at abear, slake archaic: to cause to abate or diminish < waits for the prey … its hunger to aslake — Robert Southey >