StatNis.68.10 :ܘܒܛܒ̈ܥܐ ܕܛܝܢܐ ܕܡ݂ܢ ܐܪܥܐ ܡܬܚܬܡܝܢ ܗܘܘ‏ : they were sealed by clay seals from the earth
See the entire entry for ḥtm vb. to seal, close up