As noted, J.R.R. Tolkien gave the etymological root of the word for "day" as AR1, which means that those words had always the radical letter r from Primitive Quendian. However, in Appendix E he also gave the ancient form of Áre as Áze, which can not be reconciled with the older etymology since there is no sense in Primitive r becoming archaic z and then re-evolving to Quenya r again.
According to our comprehension of the evolution of Quenya, the z sound evolved from Primitive d or Primitive s as in SRIS > hriz "to snow". This, combined with the Sindarin element as of Asfaloth (meaning "sunlit foam") shows that Tolkien altered the derivation, by changing theoretically the root AR to AS.
- ↑ 1.0 1.1 1.2 J.R.R. Tolkien, "Words, Phrases and Passages in Various Tongues in The Lord of the Rings", in Parma Eldalamberon XVII (edited by Christopher Gilson)
- ↑ 2.0 2.1 J.R.R. Tolkien, The Lord of the Rings, Appendix E, "Writing", "The Fëanorian Letters", Note, The names of the letters
- ↑ J.R.R. Tolkien, Christopher Tolkien (ed.), The Lost Road and Other Writings, "Part Three: The Etymologies", AR1
- ↑ Helge Fauskanger, The Evolution from Primitive Elvish to Quenya