AphDem1.19:8 :ܘܪܛܒܐ ܕܡܢ ܒܪܫܝܬ ܗܘ݂ܐ ܠܗ ܝܒܝܫܐ ܡܢ ܫܠܝܐ‏ : that which was moist since creation suddenly became dry
See the entire entry for rṭeḇ, reṭbā n.m. moisture