S. pronouns grammar.
Sindarin pronouns is an area of considerable complexity and uncertainty. There are relatively few attested pronouns, and only one complete published pronominal paradigm from 1962. Furthermore, it is known that Tolkien abandoned some of these 1962 forms later, but we don’t know replacements for all of them. Most Neo-Sindarin pronominal paradigms are pieced together from fragmentary information and filled with guesswork, and I regret to say that the paradigms presented here are no different. Not only do we not know enough about Tolkien’s thoughts on this subject, the little we do know make it clear he kept changing his mind.
Reference ✧ PE17/129