Luthien: Maia or Elf.

[Raynor]

Originally Posted by davem

As I said, this doesn't mean that the Elves of the later Ages were lesser beings than their ancestors, but it does imply that they believed they were.

It is apparent from the Athrabeth that elves do diminish in status while in Arda

- That I can well believe, said Finrod: that your bodies suffer in some measure the malice of Melkor. For you live in Arda Marred, as do we, and all the matter of Arda was tainted by him, before ye or we came forth and drew our hroar and their sustenance therefrom: all save only maybe Aman before he came there. For know, it is not otherwise with the Quendi themselves: their health and stature is diminished. Already those of us who dwell in Middle-earth, and even we who have returned to it, find that the change of their bodies is swifter than in the beginning.