sell

noun. *daughter, daughter; [N.] †girl, maid

The most common Sindarin word for “daughter” (SD/129; VT50/18).

Conceptual Development: In the Gnomish Lexicon of the 1910s, the word for “daughter” was G. suil with shorter form sui (GL/36, 68) probably derived from the early root ᴱ√SUẈU (QL/87) and replacing rejected {thuai, thuil} (GL/36, 73). In The Etymologies of the 1930s Tolkien gave (archaic) N. †sell “girl, maid” derived from the root ᴹ√SEL-D (Ety/SEL-D). Tolkien said sell was replaced by N. iell “daughter”:

> with i from iondo son [YŌ]; a change assisted by the loss of s in cpds. and patronymics: cf. Tinnúviel < ✱tindōmiselde (Ety/SEL-D).

Thus in Noldorin, sell became iell under the influence of N. ionn “son”, and assisted by the fact that intervocalic *s* became *h* and then vanished when -sell was used as a suffix in compounds.

It seems Tolkien abandoned this 1930s paradigm, however, since he used sell for “daughter” in a couple later documents, namely the King’s Letter (SD/129) and the Túrin Wrapper (VT50/5).

Neo-Sindarin: For purposes of Neo-Sindarin, I would use sell for “daughter” but suffixal -iel for “daughter of” under the influence of -ion “son of”, a scenario similar to that of The Etymologies. I would also allow iell as a less commmon variant for “daughter”, derived from the suffix.