CPA Matt26:67 :ܒܟܢ ܪ̈ܩܘ ܒܐܦ̈ܘܝ̈ ܘܡܚ̈ܘ ܝܬܗ ܩܘ̈ܠܦܣܝܢ̈ ܘܚܘܪ̈ܢܝܢ ܡ̈ܚܘ ܝܬܗ ܡܣܛܘܪ̈ܝܢ‏ : then they spit in his face and struck him with blows while others struck him with slaps
See the entire entry for msṭwr n.m. slap