In comparing the hyphenated words, I have reached the elf compounds. OED attests all of the words below. Only “elf-fire” and “elf-friend” overlap with the elf compounds of The Hobbit!
I am particularly intrigued by words of elven persons. OED has the compound with folk, girl, kingdom, lady, queen, and woman, while The Hobbit has guard, host, king, lord, maiden, and prince.
Now… you know me, Word Fans. I dug a little deeper. “Elven” is a noun, obviously, meaning a female elf, like fox/fixin and monk/minchin. In its second meaning, however, it is a combining appositive or attributive form:
2. Comb. (referring to a kind of imaginary being in the works of J. R. R. Tolkien).
and Elf-king is attested therein.
To be thorough, “elvish” is the OED’s adjective for elf, also spelled “elfish”. Not “elven”. That’s pure JRRT.
elf-arrow
elf-bolt
elf-bore
elf-castle
elf-child
elf-craft
elf-cup
elf-dance
elf-dart
elf-dock
elf-fire – found in The Hobbit
elf-flame
elf-flower
elf-folk
elf-friend – found in The Hobbit
elf-girl
elf-god
elf-horn
elf-house
elf-key
elf-kingdom
elf-knight
elf-knot
elf-lady
elf-land
elf-light
elf-like
elf-lock
elf-queen
elf-rod
elf-shoot
elf-shot
elf-speech
elf-stone
elf-stricken
elf-striking
elf-struck
elf-taken
elf-twisted
elf-wing
elf-woman
elf-wort
“elf, n.1.” OED Online, Oxford University Press, June 2017, http://www.oed.com/view/Entry/60431. Accessed 13 September 2017.
“elf-lock, n.” OED Online, Oxford University Press, June 2017, http://www.oed.com/view/Entry/60439. Accessed 13 September
“ˈelf-shoot, v.” OED Online, Oxford University Press, June 2017, http://www.oed.com/view/Entry/60441. Accessed 13 September 2017.
“ˈelf-shot, n.” OED Online, Oxford University Press, June 2017, http://www.oed.com/view/Entry/60442. Accessed 13 September 2017.
“ˈelven, n.” OED Online, Oxford University Press, June 2017, http://www.oed.com/view/Entry/60661. Accessed 13 September 2017.
“elvish, adj.” OED Online, Oxford University Press, June 2017, http://www.oed.com/view/Entry/60664. Accessed 13 September 2017.