A word for “mother” in notes on Elvish Hands, Fingers and Numerals from the late 1960s, along with a diminutive form emelig (VT48/17 note #13). These forms were struck through and replaced by emig as the proper diminutive form from the root √EM (VT48/6), but that doesn’t necessarily invalidate emel = “mother”, which appeared elsewhere as (probably primitive) emel, emer in rough versions of these notes (VT48/19 note #16). These Sindarin forms are unusual in that the medial m did not become v, which means the primitive form was likely based on ✱emm- as suggested by Patrick Wynne (VT48/17 note #14).
Conceptual Development: G. amil “mother” appeared in the Gnomish Lexicon of the 1910s along with rejected forms {anwin, amril} and an archaic variant †amaith (GL/19). The forms {emaith >>} amaith appeared unglossed in Gnomish Lexicon Slips revising that document (PE13/109). In The Etymologies of the 1930s there was a form N. †emil for “mother” under the root ᴹ√AM of the same meaning, but Tolkien said this word was archaic, apparently replaced by N. naneth (Ety/AM¹; EtyAC/AM¹). With N. emil, the a became e via i-affection, but the medial m failing to become v requires an explanation similar to that of 1960s S. emel.
Neo-Sindarin: I generally prefer derivatives of the earlier root √AM for “mother” words in Quenya, but in the case of Sindarin, I find emel and emig from √EM to be better and more widely accepted.
The meaning "he" is deduced from the apparent function of this word in the so-called "King's Letter", but it also seems possible to interpret it as "indeed" (as in Q. e, LR/63, VT/45:11), used here in a way of formal address expressing the wishes or the will of the King