I think "prevenge" means something like "to take revenge before the the act that has made you want to take revenge has taken place" or in other words get back at someone before they actually get you.
at least, that's what it's defined as at Urbandictionary: http://www.urbandictionary.com/define.php?term=prevenge
I think "prevenge" means something like "to take revenge before the the act that has made you want to take revenge has taken place" or in other words get back at someone before they actually get you. at least, that's what it's defined as at Urbandictionary: http://www.urbandictionary.com/define.php?term=prevenge