Sindarin 

talath dirnen

place name. Guarded Plain

The plain north of Nargothrond translated “Guarded Plain” (S/168), a combination of talath “plain” and the lenited form of tirnen “guarded” (SA/talath, Ety/TIR).

Conceptual Development: In Silmarillion drafts from the 1930s, this name first appeared as N. Dalath Dirnen (LR/299), also appearing in The Etymologies under the root ᴹ√TIR (Ety/TIR). This form reappeared in Silmarillion revisions from the 1950s-60s, but was revised to Talath Dirnen (WJ/140).

Sindarin [LR/299; LRI/Dalath Dirnen; LT1I/Talath Dirnen; LT2I/Talath Dirnen; S/168; SA/talath; SI/Talath Dirnen; UTI/Talath Dirnen; WJ/140; WJI/Talath Dirnen] Group: Eldamo. Published by