The Sindarin word naith, glossed as "angle", is derived from nek-tē (root NEK). Its Quenya form is nehte. In The Etymologies the word is glossed as "gore" and appears as a Noldorin word (the procursor of Sindarin), derived from the roots SNAS-/SNAT-. Other words derived from that root have the meaning of "spear-head, point, triangle", including a sketch of an arrow-head.
The English gloss gore is a rare word which describes any of a wide range of narrow or pointed items, originally a narrow triangular piece of land.
- J.R.R. Tolkien, The Lord of the Rings, The Fellowship of the Ring, "Lothlórien"
- J.R.R. Tolkien, "Words, Phrases and Passages in Various Tongues in The Lord of the Rings", in Parma Eldalamberon XVII (edited by Christopher Gilson), p. 55
- J.R.R. Tolkien, Christopher Tolkien (ed.), The Lost Road and Other Writings, Part Three: "The Etymologies"