OS LkCur10:11 :ܐܦ ܚܠܐ ܕܕܒܩ ܒܪ̈ܓܠܝܢ ܢܦܨܝܢ ܐܢܚܢܢ‏ : we shake off the dust clinging to our feet
See the entire entry for npṣ vb. to shake out