How to pronounce“perfit”in English

“… as if he would make a fire the more vehement, by sprinkling water upon the coales, so to wrap a hote fever in cold Melancholy, least the fever alone should not destroy fast enough, without this contribution nor perfit the work (which is destruction) except we joynd an artificiall sicknes, of our owne melancholy, to our natural, our unnaturall fever.”