IshGen 3:1 :ܘܐܦ ܗ݀ܘ ܟܕ ܡܬܐܟܬܢ ܠܗܪ̈ܣܝܣ ܕܝܠܗ ܐܣܛܝ ܠܝܗܘܕܝܘܬܐ ܘܐܬܓܙܪ‏ : also that one when he was upset with his heresy turned away to Judaism and was circumcised
See the entire entry for ˀktn vb. Qt to become angry