dalath

noun. vale

damrod dir hanach dalath benn

Damrod (a hunter) through the vale down the mountain slopes

ladwen

noun. plain, plain, [G.] heath; levelness, flatness; plane; surface

A noun in the Gnomish Lexicon of the 1910s glossed “levelness, flatness; a plain, heath; plane; surface”, a more elaborate form of G. lad “a level, a flat” (GL/52). It reappeared in the Lays of Beleriand of the 1920s as an element in the name ᴱN. Loth-a-ladwen “Lily of the Plain” (LB/149), but there is no sign of it thereafter.

teloth

noun. plain, plain; [G.] roofing, canopy, shelter

A noun appearing as G. teloth in the Gnomish Lexicon of the 1910s with the gloss {“roofing, cover, shelter” >>} “roofing, canopy, shelter” derived from the root ᴱ√tel- “cover in” (GL/70). It was an element in the name G. Dor-na-Dhaideloth “[Land of] the Heaven Roof” (LT2/287). In the Lays of Beleriand of the 1920s the element Deloth in this name was glossed “Plain” (LB/49). Both these meanings were later abandoned, and this name eventually became S. Dor Daedeloth “Land of Great Dread” (WJ/183).