Ilk. muil n. “twilight, shadow, vagueness” (Category: Shade, Shadow)
Conceptual Development: Tolkien seems to have coined this word to explain Umboth Muilin “Twilight Meres”, a remnant of earlier G. Umboth-muilin “Pools of Twilight”. The meaning of the Ilkorin elements is reversed from the earlier name: in the Gnomish name muilin “pools” was the plural form of the word G. muil, glossed “tarn” in the Gnomish Lexicon (GL/58) which is an older English word for “(mountain) lake”. In later writings, Tolkien replaced this name with S. Aelin-uial “Meres of Twilight”.
Reference ✧ Ety/MUY ✧ Dor. muil “twilight, shadow, vagueness”
|ᴹ√MUY > muil||[mujlē] > [muilē] > [muile] > [muil]||✧ Ety/MUY|
A word appearing in the Gnomish Lexicon glossed “tarn” (GL/58). Its etymology is unclear. In later writings, muil had a number of different meanings.
References ✧ GL/58; LT2A/Umboth-muilin