N. Hithliniath loc. “Pools of Mist”
A Noldorin name for Ilk. Umboth Muilin in Silmarillion drafts from the 1930s, translated “Pools of Mist” (LR/262, footnote). In The Etymologies it was given as a combination of hîth “mist” and the lenited class-plural of lhîn “pool” (Ety/KHIS).
See S. Aelin-uial for further discussion.
References ✧ Ety/KHIS, MBOTH; LR/262; LRI; WJI
|lhîn||“pool”||soft-mutation class-plural||✧ Ety/KHIS (liniath)|