Beware, older languages below! The languages below were invented during Tolkien's earlier period and should be used with caution. Remember to never, ever mix words from different languages!
rôn
noun. embrace, clasp
rôn
noun. liver
The word G. rôn⁽⁾ “liver” appeared in the Gnomish Lexicon of the 1910s, but its etymology is unclear (GL/65). Q. rāna “moon” was written in pencil nearby, but this seems to be from an earlier layer of the lexicon, and may be unrelated.
Neo-Sindarin: I’d retain ᴺS. rôn “liver” for purposes of Neo-Sindarin, perhaps as a derivative of the later root √RON “solid, firm”, since (a) there are no later words for “liver” and (b) the word rôn does not appear with any other meaning in later writings.
rô
noun. [unglossed]
dôn
?. [unglossed]
rôs
noun. embrace
clidhron
noun. [unglossed]
ranuin
masculine name. Month
climbol
noun. [unglossed]
beb
adverb. [unglossed]
brid-
verb. [unglossed]
fî
noun. [unglossed]
gatha
?. [unglossed]
@@@ form does not appear elsewhere and similar forms are not relevant
pad
noun. [unglossed]
praust
noun. [unglossed]
prog
noun. [unglossed]
rab-
verb. [unglossed]
ranoth
noun. month
sind
noun. [unglossed]
sinthi
pronoun. [unglossed]
thail
noun. [unglossed]
thel
noun. [unglossed]
thelg
noun. [unglossed]
thil
noun. [unglossed]
thion
noun. [unglossed]
thrim
?. [unglossed]
thug
noun. [unglossed]
thû-
verb. [unglossed]
trum
?. [unglossed]
tûn
noun. [unglossed]
ulthanc
noun. [unglossed]
umeg
?. [unglossed]
’ôs
noun. [unglossed]
A noun appearing as G. rôn or rôs “embrace” in the Gnomish Lexicon of the 1910s, related to the verb G. rôtha- “embrace” (GL/66). On another page rôn⁽⁾ “clasp, embrace” was marked archaic and tied to (likewise archaic) G. râ “arm” (GL/65). Perhaps this word became archaic due to clashes with G. rôn “liver”.
Neo-Sindarin: I adapt the related Gnomish verb G. rôtha- as ᴺS. ranga- (see that entry for discuss), so I would revise its noun form to ᴺS. rangoth as a combination of that verb with the suffix -th.