Just a guess, but perhaps it's similar to darbringen. Keep in mind that in German you can make up words on the fly from bits and pieces of other words. This one should really be in a dictionary though imo. There are many examples of it being used, some recently, see results from DWDS usage database. If you're brave, you might try to decipher the entry in Grimm's DWB. I'm thinking it's meaning 1aβ (basically opfern).

Just a guess, but perhaps it's similar to darbringen. This one should really be in a modern dictionary though imo. There are many examples of it being used, some recently, see results from DWDS usage database. You can find the entry in Grimm's DWB here. I'm thinking it's meaning 1aβ (basically opfern).