CPA IThes4:11 :ܘܕܬܗܘܢ ܫ̈ܠܝܢ ܘܥܢ̈ܝܢ ܒܥ̈ܢܝܢܝܟܘܢ‏ : you should keep quiet and take care of your own affairs
See the entire entry for šly vb. to cease movement