IshNum 100:15 :ܠܟܪ̈ܝܗܐ ܡܚܠܡ ܗܘܐ܂ ܘܠܚܠܝ̈ܡܐ ܡܟܪܗ ܗܘܐ‏ : he heals the sick ones and sickens the healthy ones
See the entire entry for krh vb. to be sick