There was this discussion elsewhere. The German explanation perhaps the best rationale. It is most likely not for Gill or Gunby. It came up again in anther thread there but is misplaced in my mind at the moment. That one as well pointed to the German connection and use of it. If I remember the context I'll try to dig it up.
http://www.swordforum.com/forums/sho...6963-What-up-G
Cheers
GC
http://www.swordforum.com/forums/sho...fy-my-swords-1