Taking a look at the pairs so far, I can make:
Saruman - Olorin
Azog's Kinsman - Nori
Shelob - Iorhael
Silmarils - Radiance of the Trees
Nerwen's Phial - Evening Star's Light
Elessar - Trahald
Eggshell - Riches
Faramir - (Cormacolindor)
Theoden - Eomer
Which leaves "Arkenstone" and "No-one", along with T (a king), D (someone short), R (a male), and E (unknown).
The only time the Arkenstone was particularly fettered was when Bilbo stole it - the rest of the time it was just kind of lying about. Could some descriptive phrase for Bilbo be the D clue? "short yet doughty" would fit.
I seem to recall that No-one ever caught Tom Bombadil about his ramblings, but I don't think there's a name that will fit any of the clues. He's a master, not a king.
I really want E to be Eonbon or Eumbug or something like that. ^_^
hS
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