Earlier name of the Mountains of Shadow in Morder in Lord of the Rings drafts from the 1940s (WR/122, 180), a combination of hebel (“?fence”) and dú(w)ath “night-shade”.
Noldorin
hebel
noun. ?fence
hebel dúath
place name. Mountains of Shadow
hebel uilos
place name. White Mountains
Earlier name for S. Ered Nimrais appearing in Lord of the Rings drafts from the 1940s with the gloss “White Mountains” (WR/137). It is a combination of hebel and Uilos “Ever-snow”. The second element was initially (rejected) Orolos, perhaps meaning “?Mountain Snow” as suggested by Roman Rausch (EE/3.14).
ephel nimrais
place name. Ephel Nimrais
Earlier name for S. Ered Nimrais (WR/137), using ephel “outer fence” instead of ered “mountains”. It also appearing as (rejected singular) Ephel Nimras and possibly Hebel Nimrais (the last element is hard to read).
ered nimrath
place name. White Mountains
Earlier name for S. Ered Nimrais (WR/137), with a final element rath “course” (“?climb”) instead of rais “horns”, as suggested by Roman Rausch (EE/3.14). It also appeared as Hebel Nimrath (WR/167).
ered nimras
place name. White Mountains
Earlier name for S. Ered Nimrais (WR/168), with singular ras “horn” instead of plural rais “horns”. The plural was introduced later (WR/288).
eryd-lómin
place name. Mountains of Shadow
An element of the (Noldorin) names of some mountain ranges in Lord of the Rings drafts from the 1940s. In the case of N. Hebel Dúath “Mountains of Shadow”, it was later replaced by S. ephel “outer fence, surrounding ring”, so perhaps has a similar meaning. It might be a remnant of G. heb “round about, around” (GL/48), which appeared as an element in the name G. Heborodin “Encircling Hills” (LT2/166).