The basic Sindarin word for “out”. In The Etymologies of the 1930s it appeared in prefixal form N. ed- under the root ᴹ√ET “forth, out” (Ety/ET). In the Quendi and Eldar essay from 1959-60, Tolkien said ed “out, out of” was a derivative of primitive ✶et (WJ/367), with hints that this preposition cause stop mutation; see that entry for details.
Conceptual Development: The Gnomish Lexicon of the 1910s had G. {ed “close by” >>} edh “outside, on borders of, near, hard by, beside” with specialized mutations, probably an early version of stop mutation (GL/31). At this early stage it was likely derived from the root ᴱ√ERE [EÐE] “out” (QL/36).
_3rd sg. poss. suff. his, her.See also the paradigm of poss. suff. in PE17:46. Later -deid_, -deith, -dyn. >> -deid, -deith, -dyn