IshExod 18:3 :ܬ݁ܢܐ ܫܪ̈ܒܬܐ܂ ܘܟܕ ܡܛ݂ܐ ܠܫܪܒܬܐ ܕܠܘܝ ܦܫ‏ : he reviews the families, and when he reached the family of Levi he stopped
See the entire entry for pwš vb. to remain behind