UNKNOWN
Let me explain more about my definition.  I should have said a witch is a person who is believed, not that who can do that and that and that and so on.  It is a person who is believe to be endowed with powers that can cause evil to other people, but in wondering what I'm saying about this, if he can bewitch, he is a witch to such an extent that he can be compared with a snake, then here they say now he's like a snake that can kill a human being and yet he doesn't eat flesh.  So in other words that is saying that a witch might just be a jealous person, but he himself does not benefit from his evil acts, he only enjoys seeing that particular victim gone.  He does not directly gain.