Kays 267:1 :ܗ݀ܠܝܢ ܕܝܢ ܫܒܥܐ ܓܘ݂ܫ̈ܡܐ ܩܕ̈ܡܝܐ ܘܪ̈ܫܐ ܕܟ݁ܠܗܘܢ ܓܘ݂ܫ̈ܡܐ‏ : these seven solid substances, then, are the origins and beginnings of all solid substances
See the entire entry for gšum, gušmā, gešmā n.m. body