DeMundo 142:26 :ܐܢ ܕܝܢ ܥܡ ܡܛܪܐ ܣܓܝܐܐ ܡܢ ܫܠܝ ܢܬܬܠܚܘܢ݂݁ ܪ̈ܛܝܒܐ ܡܫܬܡܗܝܢ‏ : if (the clouds) split apart suddenly along with much rain, (the winds) are called moist ones
See the entire entry for tlḥ vb. to split, to wound