Noldorin 

doriath

place name. Land of the Cave
Noldorin [Ety/GAT(H); Ety/NDOR; EtyAC/GAT(H); LR/180; LRI/Doriath; RSI/Doriath; SMI/Artanor; SMI/Doriath; TII/Doriath; WRI/Doriath] Group: Eldamo. Published by

dor

noun. land, dwelling-place, region where certain people live

The form dor in the Etymologies is a misreading, see VT/45. In composition and in toponyms, the word is nevertheless reduced to Dor

Noldorin [Ety/376, S/430, WJ/413, Letters/417, VT/45:38, R] Group: Hiswelókë's Sindarin Dictionary. Published by

dôr

noun. land, dwelling-place, region where certain people live
Noldorin [Ety/NDOR; Ety/PHAU; Ety/THŌN; EtyAC/NDOR; LR/265; PE22/033; PE22/036; PE22/038] Group: Eldamo. Published by

ardholen

place name. Hidden Realm

A Noldorin equivalent of Ilk. Garthurian “Fenced Realm, Hidden Realm” appearing in The Etymologies from the 1930s (Ety/GAT(H)). It seems to be a combination of ardh “realm” and the lenited form of dolen “hidden”. The related name Arthoren has a different meaning: “Fenced Realm”

Noldorin [Ety/GAT(H)] Group: Eldamo. Published by