SLAKE Meaning of SLAKE in English I . v. a. 1.Quench, extinguish, allay, abate, decrease, slacken.2.Slack ( as lime ). II . v. n. 1.Desist, fail, go out, be quenched, become extinct.2.Abate, decrease, become less decided. Soule. Dictionary of English synonyms. Словарь английских синонимов. 2012