xausa is right. Today we say in Germany always "aufbrechen", indeed "auswaiden" is the old form. If we congrate a succesful hunter, we say " Waidmannsheil" and this is also written "Weidmannsheil". I always prefere the classic version. As Mike said, the German hunters language is a very special thing and the "normal" people don't understand it.
Unfortunately it disappears more and more and even novices to hunting do not know the most important words...

Waidmannsheil,
Gunwolf

http://www.hunting-heritage.com