CPA(le97) Gen 7:18 :ܘܟܝܒܘܬ݁ܐ ܗܘܬ݁ ܫܝܛܐ ܠܥܠ ܡܢ ܡܝܐ‏ : the ark was sailing on the water
See the entire entry for šwṭ vb. to go about floating