PhiloxGaugal1 153:12 :ܗ݀ܘ ܕܠܐ ܡܫ݁ܪ ܕܚܕ ܡܢ ܬܠܝܬܝܘܬܐ ܗ݂ܘ ܗ݀ܘ ܕܐܨܛܠܒ݂‏ : he who does not believe that one of the Trinity is the one who was crucified
See the entire entry for šrr vb. to be firm, true