A website I had found shortly after being introduced to DoW 1 seemed to indicate the spelling was different depending on 40k or WFRP. But then again, I think that was being pulled from the wikipedia page about Warhammer, so the likelihood that it was written by someone who knows absolutely nothing about Warhammer is as likely as it being written by someone who does.

Is it just me, or is Wikipedia getting worse and worse? Or am I just noticing it more.

Yeah, I knew about Black orcs from a short stint in Warhammer Online, but... heh, I love the way they portray the Orcs... Orks, whatever. A friend of mine is big into the 40k Universe and explained a lot of how their mentality, equipment, etc., all works. Freaking hilarious.