Elves and Ringwraiths

[Ivriniel]

On the possible other hand I have posted before that Tolkien as Subcreator 'should' be, and was, greatly concerned with consistency, and that the purposed inconsistencies should be like pepper in the soup -- some measure will actually help make the Subcreated World more believable, but too much will, or at least might, serve to help 'ruin' the taste.

Materials imputing inferential significance to Tolkien's intentions are steeped in the tradition of analysis that compares and contrasts the various excerpts in a deeply inconsistent set of materials that evidenced, not just one evolutionary trajectory, but various evolutionary trajectories. Moreover, the vast masses of materials sometimes do, and sometimes do not restore an original idea. How long did Aragorn live? Twice or thrice the lifespan of men--he actually says 'twice' somewhere in one of his letters! But decided upon 190 years in the Appendices.

Methodologies for interpretation vary. My preferred mode--only because of personal preference and certainly not because it's the most efficient (whatever that means) way of approaching the Tolienien cosmology, is to explore what is revealed, in narrative text, between characters.

LotR, as we know, post dates the mythological foundation (not publication) of the Silmarilien. He wrote (no scrawled) many of his ideas down, on paper, well ahead of the eventual first publication of the Hobbit.

Consistency, was also sometimes deliberately avoided. His positioning of the anomalous responses of Bombadil to the Ring and Bombadil's obscure misalignment of existential themes surrounding Tom, was done on purpose. I read in that in Letters (and for the life of me I can't find it right now).

So, with all that in mind, and, methodological analyses aside, and how to adapt ideas about Tolkien's intention aside--what do we know about the topic at hand from in-text citations in the published story narratives?