Nernehta is the Quenya name of the battle formation known in Sindarin as the Dírnaith.
It is derived from the Quenya words Nér "man" and nehte/nehta which is applied to any formation or projection tapering to a point.
- ↑ 1.0 1.1 J.R.R. Tolkien, Christopher Tolkien (ed.), Unfinished Tales, "The Disaster of the Gladden Fields", note 16