êl S. [ˈɛːl] pl. elin S. [ˈɛlin] n. Arch., Poet. Astron. star (little used except in verses) ◇ WJ/363, MR/373, RGEO/73, Letters/281 ◈ elenath S. n. coll.
star ◈ êl S. [ˈɛːl] pl. elin S. [ˈɛlin] n. Arch., Poet. Astron. star (little used except in verses) ◇ WJ/363, MR/373, RGEO/73, Letters/281 ◈ elenath S. [ˈɛlɛnɑθ] n. coll. of êl, starry host, all the host of the stars of heaven ◇ LotR/II:I, RGEO/73-75, WJ/363 ◈ geil N. [gˈɛjl] pl. gîl N. n. Astron. star, bright spark ◇ Ety/358, VT/45:15 ◈ gil S. [gˈil] Astron. star, bright spark ◇ LotR/E, S/431, RGEO/73 ◈ In The Etymologies (Ety/358, corrected by VT/45:15), this word was given as geil, plural gîl. However, later in LotR/E and RGEO/73, Tolkien seems to consider gil as a singular (with no hints in the sources of what the plural would be, besides the collective plural giliath) ◈ giliath S., N. [gˈili.ɑθ] n. coll. of gil/geil, all the host of stars ◇ Ety/358, RC/232 ◈ †tinu *S. [tˈinu] (tinw N.) n. Astron. spark, small star ◇ Ety/393, X/W
From Wikipedia, the free encyclopedia Helena, Queen of Sweden
Queen Helena (or Elin), also known as Maer, Mär or Mö (Old Nordic; "Maiden") (born in the 11th century, dead after 1110), was a Swedish queen, consort to King Inge I of Sweden and sister of King Blot-Sweyn of Sweden."Elin" is also a Sindarin name for the Elves of J. R. R. Tolkien's legendarium.
Meaning: Its source is eorl, an Old English name meaning "Title of nobility."