Sindarin name for Q. Estë, it is simply îdh “rest” used as a name, a derivative of primitive ✶ezdē (PE19/92).
Conceptual Development: The name N. Îdh appeared in The Etymologies from the 1930s, with the same derivation (Ety/EZDĒ). It was first written as (rejected) Ēdh, perhaps representing some uncertainty on the [[on|vocalization of [z] before voiced stops]] in Noldorin.
_ adv. _Extremely, very. A word seldom used. >> Ídril. This gloss was rejected.