Another name for Minas Morgul appearing in Lord of the Rings drafts from the 1940s (WR/106), a combination of neleg “tooth” and the lenited form of gloss “white”.
Conceptual Development: This name first appeared as Neleg Thilim with the plural of neleg and the adjective thilim “gleaming”.
The most common word for “tooth”, appearing in The Etymologies of the 1930s as a derivative of the root ᴹ√NELEK of the same meaning (Ety/NÉL-EK). See variant N. nêl “tooth” for further discussion.