[per.ish] vb [ME perisshen, fr. OF periss-, stem of perir, fr. L perire, fr. per- detrimentally + ire to go--more at per-, issue] vi (13c) 1: to become destroyed or ruined: die "recollection of a past already long since ~ed --Philip Sherrard" "guard against your mistakes or your attempts (~ the thought) to cheat --C. B. Davis"
2. chiefly Brit: deteriorate, spoil ~ vt 1 chiefly Brit: to cause to die: destroy
2: weaken, benumb