I found it on Breitkopf & Härtel's site where the pinted copy has the origuinal title and the accommpanying editorial matter in in English. For my part, I just left the cell blank until iit became clear from the radials that the word is singular here
I'm way behind you lot! Currently puzzled by Ring 42, where I can see a two letter solution that perfectly fits the clue, but don't see the three letter one?