Forest. Marshes. But what does "deleable" mean? Despite finding a French reference to "un vin deleable", the word doesn't appear in any online French-English dictionary I've tried. Anyone have access to the OED?

I think there is one place with the adjective "deleable" in Arthurian legend : Deleable Island for Isle Delectable (or Isle Delitable).
It's a bad translation of "delectable" who means good, delicious...