Noldorin
narch
place name. Narch
narch
adjective. *bitter-biting
narchost
place name. *Bitter-biting Fort
narcha-
verb. to rend
narcha-
verb. to rend
naeth
noun. biting
naeth
noun. woe (gets sense of gnashing teeth in grief)
nag-
verb. to bite
According to Christopher Tolkien, this was the initial name of the valley of Udûn in Mordor (SD/34), also appearing as Narch Udûn (WR/438). This name seems to have the same word narch seen in Narchost (the second of the Towers of the Teeth), but it isn’t clear whether J.R.R. Tolkien intended these names to be related.