AGnEx 3.21 :ܕܐܝܟܐ ܕܥܠܬ ܗܘܬ ܛܥܝܘܬܐ ܢ‍[‍ܩ‍]‍ܗܝܗ݀ ܒܝܕ ܙܗܪ̈ܝܪܐ ‍[‍ܕܝܕ‍]‍ܥܬܐ ܫܪ݂ܝܪܬܐ݂‏ : so that where the error had entered he could make it unappetizing by means of the splendors of true knowledge
See the entire entry for qhy vb. to be dull, blunt