Have you watched ROP yet?
What do the words Mana and Ure mean O keeper of the Dictionary?
Out of context that can present problems.
'Ure' -- Looking at the Silmarillion portion of the Dictionary, in Sindarin UR as a root indicates 'great', possibly a 'point' {of a spear}.
In Quenya UR as a root means 'hot', 'fire'.
In Black Speech we encounter the term 'Uruk-hai'; Tolkien says the Black Speech word uruk was likely adapted from the ancient Elvish; see stems RUK- 'demon' ... ÓROK- 'goblin'.
'ur-' by itself, if in the Mannish tongue, might derive from the Anglo Saxon earg, ierg-, yrc- 'slothful', 'vile' - referring to the Black Speech term.
In Quenya MAN- as a root means 'good', 'blessed' and, by extension 'holy spirit'.
For further possibilities context might make a difference.
I forgot this part of your question. Yes, I watched the first two episodes. I noted some Elvish terms in passing. In Peter Jackson's LOTR trilogy, the Elvish Sindarin speech was supplied by David Salo, who wrote a book 'A Gateway to Sindarin', University of Utah Press, 2004. Whether Salo had any part in the Amazon productions I do not know. We had brief correspondence 18-20 years ago.
Incidentally, quickly checking his lexicons, I find his roots correspond with what I posted previously.