Anar is the most common Quenya name for the Sun and was derived from primitive ✶Anār, an augmented form of the root √NAR “fire” (Let/425; PE17/38; Ety/ANÁR; SD/302, 306). In the uninflected form the long vowel shortens as usual in final syllables, but its stem form is probably Anár- as with the name Anárion (LotR/1044) and the plural coranári of coranar “sun-round” (PM/126). When suffixes with consonant clusters are added, however, the á shortens such as with Anarinya “my Sun” (LR/72).
Conceptual Development: This term appeared in Silmarillion drafts of the 1930s with the gloss “Heart of Flame” (LR/240) and as ᴹQ. Anar “sun” in The Etymologies of the 1930s, already with the derivation given above (Ety/ANÁR, NAR¹).
One of the dwarves who accompanied Bilbo from Bag-end in early Lord of the Rings drafts from the 1940s (RS/238).