nîn (“wet”) + talf (“flat field, land”)
Sindarin
nindalf
place name. Wetwang
Nindalf
noun. wet land
Nindalf
noun. nēn-talma
n. Q. nēn-talma.
Nindalf
'wet flat'
Nindalf
Nindalf
The name is Sindarin, consisting of nîn ("wet") and talf ("flat field").
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).