The fens below the falls of Rauros, translated “Wetwang” (LotR/373). This name is a combination of nîn “wet” and the lenited form of talf “flat field” (PE17/52, 61; RC/779).
Conceptual Development: In Lord of the Rings drafts from the 1940s, this region was first named N. Palath Nenui “Wetwang” (TI/268), soon revised to N. Nindalf (TI/281).
palar noun "flat field, 'wang', plain" (the editors indicate that the last gloss may also be read as "place", but "plain" seems more likely in light of the other glosses, VT46:8)