DeMundo 138:13 :ܘܡܢܗܘܢ݂܂ ܕܠܐܦ̈ܝ ܠܥܠ ܡܬܝܠܕܝܢ ܘܓܕܝܢ ܡܢܗ݀܂ ܘܡܢܗܘܢ ܕܠܝܡܐ ܓܣ݁ܝܢ ܘܢܚܬܝܢ‏ : some of them [springs and rivers] are formed above and rise up from it, while some of them belch down into the sea
See the entire entry for gdy vb. to rise smoke-like