Silmaril (Silmarill-, as in pl. Silmarilli), noun, name of the shining jewels made by Fëanor; full sg. form Silmarillë (SA:sil, SIL, RIL, MIR).Translated "radiance of pure light" in Letters:148. Gen. pl. Silmarillion, as in (Quenta) Silmarillion "(the Story) of the Silmarils".
Quenya
silmaril
proper name. Great Jewel
Silmaril
radiance of pure light
-on
name
-on gen.pl. ending (3O), in aldaron, aranion, elenion, Eldaron, #esseron, Ingweron, Istarion, Númevalion, Quendion, Silmarillion, Sindaron, tasarion (see Nan-Tasarion), Valion, wenderon, yénion. Normally the ending -on is added to the nominative plural, whether it ends in -i or -r, but some nouns in -ë that would have nominative plurals in -i seem to prefer the ending -ron in the genitive (hence #esseron as the gen. pl. of essë "name", though the nominative pl. is attested as essi and we might have expected the gen. pl. *ession; similarly wenderon, Ingweron).
essë
name
essë (1) noun "name", also later name of Tengwa #31, originally (MET) called árë (ázë). (Appendix E). With a pronominal ending esselya "thy name" (VT43:14). Pl. #essi in PM:339 and MR:470, gen.pl. #esseron "of names" in the compound Nómesseron (q.v.); we would rather have expected *ession, given the nom.pl. essi; perhaps #esser is a valid alternative plural form. Essecarmë noun "name-making" (MR:214, 470), Eldarin ceremony where the father announces the name of his child. Essecenta *("k") noun "Name-essay" (see centa) (MR:415); Essecilmë noun "name-choosing", an Eldarin ceremony where a child named him- or herself according to personal lámatyávë (q.v.) (MR:214, 471). The meaning Tolkien originally assigned to the word essë** in the Etymologies was "place" rather than "name" (VT45:12).
sanda
name
[sanda, sandë] (þ) (2) noun "name" (VT46:16)
sanya
name
[sanya] (þ) (2) noun ?"name" (reading of gloss uncertain, VT46:16)
esse
noun. name
essë
noun. name
esta-
verb. name
The name of the great jewels crafted by Fëanor from which The Silmarillion legends gets their name (S/33). It sometimes appeared in the longer form Silmarillë (PE17/47, PM/363). Tolkien translated this name as “radiance of pure light” (Let/148) and said that it was a combination of silima, the crystaline substance from which the jewels were made (RGEO/65), and a derivative of the root √RIL “brilliant, brilliance” (PM/363), perhaps in the form [ᴹQ.] rille “brilliance”.
Conceptual Development: The name ᴱQ. Silmaril dates back to the earliest Lost Tales (LT1/128). Christopher Tolkien suggested that at this early stage it was a compound of ᴱQ. Sil “Moon” and ᴱQ. marilla “pearl” (LT1A/Silmaril), which is consistent with its Gnomish cognate G. Silubrilt. In The Etymologies, the name ᴹQ. Silmaril appears as a combination of silma “silver, shining white” and the root ᴹ√RIL (Ety/RIL, SIL), similar to its later etymology.