Sindarin 

Imlad Morgul

noun. valley of black magic

im (“between, within”) + lad (“plain, valley”), morn (“dark, black”) + (n-)gûl (“magic, necromancy”) In L:427, Tolkien explains that … “the triconsonantal group (rng) then being reduced to rg”.

Sindarin [Tolkiendil] Group: Tolkiendil Compound Sindarin Names. Published by

imlad morgul

place name. Morgul Vale

Sindarin name of Morgul Vale (LotR/694), a combination of imlad “valley” and morgul “sorcery” (RC/482).

Conceptual Development: In Lord of the Rings drafts from the 1940s, this name first appeared as N. Imlad Morghul (WR/223, note #25).

Elements

WordGloss
imlad“deep valley, narrow valley with steep sides, gap, gully, deep valley, narrow valley with steep sides, gap, gully, [N.] dell, glen”
morgul“black arts, sorcery, necromancy”
Sindarin [LotR/0694; LotRI/Imlad Morgul; LotRI/Morgul Vale; RC/482; SA/lad] Group: Eldamo. Published by