See the entire entry for ˀsqryˀ#2 n.m. mast, sailyard of a ship

AphDem14.259:18 :ܘܓܘܒܪܢܝܛܐ ܕܫܗܪ ܢܛܪ ܐܣܩ‍{‍ܕ‍}‍ܝܗ ܕܠܐ ܬܛܒܥ ܐܠܦܗ : the alert ship captain watches his mast so that his ship does not sink

See the entire entry for šhr vb. to be awake