etyl -> cog exceptions

Hi CodeCat, thanks for your changes on etyl/cog. I didn't realise I had been a pretty regular abuser of that template. Is there a way you can revert or leave alone those involving etymologies where one word derives from two? For example, heraus derives from a two word phrase in MHG, and it is incorrect to treat MHG her as the cognate, as here: heraus-diff. I'm not sure how widespread this problem is. Thanks,