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!
auros
masculine name. Auros
auredhir
masculine name. Auredhir
aur(a)
noun. Sun
aura
masculine name. Smith
aura-nûmin
proper name. Sunset
aurin
adjective. made (by craft of hand), wrought, fashioned
A word in the Gnomish Lexicon of the 1910s glossed “made, wrought, fashioned”, related to G. ûr “smith” and G. urtha- “work, wreak, fashion, make, devise” (GL/20, 75). The Gnomish Lexicon Slips modifying this document had {awrin >>} yrin “made (by craft of hand)” as an early example of i-affection (PE13/115).
Neo-Sindarin: For purposes of Neo-Sindarin, I would update this word to ᴺS. tavnen “made (by craft of hand), wrought, fashioned” based on S. tavn “thing made by handicraft” (PE17/107).
aurfaiglim
proper name. the Sun at noon
aurost
noun. dawn
haurost
noun. dawn
nalos·aura
proper name. Sunset
hŷr
noun. sun
A word appearing in the Gnomish Lexicon Slips of the 1910s as {ŷr >>} hŷr “sun” beside a variant G. aur of the same meaning (PE13/114).
ûr
noun. smith
am(b)ros(t)
noun. dawn
amrost
noun. dawn
aust
noun. summer
cuilin
adjective. golden
culwin
adjective. golden
A word appearing as culwin or culuin “golden” in the Gnomish Lexicon of the 1910s, an adjectival form of G. culu “gold” (GL/27).
danoriol
adjective. daily
danuin
masculine name. Day
dân
noun. day
galaduir
proper name. Sun
ost
noun. summer
safwen
noun. summer
taglos
noun. smith
tagor
noun. smith
tagros
noun. smith
uril
proper name. Sun
urna-
verb. to blaze, burn (intr.)
The verb G. {urtha- >>} urna- “blaze, burn (intr.)” appeared in the Gnomish Lexicon of the 1910s (GL/75), probably derived from the early root ᴱ√URU which had several fire-related derivatives (QL/98).
Neo-Sindarin: For purposes of Neo-Sindarin, I think this verb can be adapted as ᴺS. orna- from the later root √UR, and it can be used for “burn” in general (both transitive and intransitive) since the other transitive Gnomish “burn” words like G. gusta- cannot be easily adapted.
yrin
adjective. made (by craft of hand)
áugwila
adjective. sunny, sunlit
A word for “sunny, sunlit” in the Gnomish Lexicon of the 1910s, apparently an adjectival form of G. augla “ray of sunlight, sunbeam” (GL/20). This function of the accent mark on the initial áu is not clear.
ŷr
noun. smith
A noun in the Gnomish Lexicon of the 1910s appearing as Aur “Sun” (GL/20), probably a cognate of ᴱQ. Ûr from the root ᴱ√URU as suggested by Christopher Tolkien (LT1A/Ûr; QL/098). It appeared as aura in G. nalos·aura “sunset” and G. orosaura “sunrise” (GL/59, 62). The word G. aur “sun” was also mentioned in Gnomish Lexicon Slips with corrections for that document (PE13/114), but by The Etymologies of the 1930s, N. aur meant “day”, whereas N. Anor became the name of the Sun (Ety/ANÁR, AR¹).