JS_Elijah 2:291 :ܘܟܲܕ ܐܸܬܡܲܪܩܲܬ ܢܲܦܫܸܗ ܒܨܲܘܡܵܐ ܕܲܡܠܸܐ ܐ̄ܪ̈ܵܙܸܐ‏ : when his soul was cleansed by the mystery-full fast
See the entire entry for mrq vb. to cleanse