The fay of the mountains in the earliest Lost Tales (LT1/66). It is likely derived from the root ORO “rise” as suggested by Christopher Tolkien (LT1A/Orossi).
Early Quenya
oro
noun. hill
orome aldaron
masculine name. Orome Aldaron
orome
masculine name. Orome
orossi
collective name. Fays of the Mountains
orosta
noun. ascension
A noun appearing as ᴱQ. orosta “ascension” in the Qenya Lexicon and Poetic and Mythological Words of Eldarissa of the 1910s, based on the early root ᴱ√ORO (QL/70). The Qenya Lexicon also had an unaugmented variant rosta under the root ᴱ√RŌ (QL/80). Early Noldorin word lists of the 1920s instead had ᴱQ. orosta as equivalent to ᴱN. oroth “impetus, speed, haste, rash courage”, derived from primitive ᴱ✶orotse (PE13/151); see ᴹQ. orme for discussion.
Neo-Quenya: Since √RŌ/ORO “rise” survives in Tolkien’s later writings, I would retain ᴺQ. orosta “ascension” for purposes of Neo-Quenya.
oro-
verb. to rise
oronta
adjective. steep
orosta
noun. impetus, speed, haste, rash courage
oronte
noun. sun-rise
oronto
noun. East, rising (of the sun)
orodáni
collective name. East Danes
oron
noun. hill
oroman
noun. wood-spirit
orot
noun. cave
oron
noun. bush
oromatsile
masculine name. Great Bear
orome
noun. oak
A deleted word for “oak” in Early Qenya Word-lists of the 1920s (PE16/140), probably a cognate to contemporaneous ᴱN. {gorm >>} gorw “oak” (PE13/145).
orto-
verb. to raise
lon(de)
noun. loud noise
ô
preposition. from
amu
adverb. up(wards)
lahta-
verb. ‽
tárie
noun. height
am(u)-
prefix. up(wards)
am-
prefix. up(wards)
amba
adverb. up
ambo
noun. hill
amu-
verb. to raise
amun
noun. hill
nor
noun. oak
orme
noun. tree
orne
noun. tree
rosta
noun. ascension
rótele
noun. cave
tahorme
noun. mountain
taorme
noun. mountain
taru
noun. horn
Full name of Orome including his sobriquet Aldaron (GL/63).