JSBhom 82:189 :ܘܲܒܥܸܠܕܲܪܸܗ ܐܵܕܵܡܵܣ ܗ̄ܘܵܐ܃ ܟܼܐܦܵܐ ܕܠܵܐ ܐܼܝܬ ܡܸܕܸܡ ܕܡܲܟܸܐ ܠܫܲܪܼܝܪܽܘܬܵܗ݀‏ : but his opponent was diamond, the stone that nothing exists that damages its solidity
See the entire entry for ˀāḏāmās adj. adamant, diamond