A name for the moon in linguistic notes from 1930s (PE21/38, 41), perhaps a derivative of the root ᴹ√NDŪ “go down”, though this root usually applied to the Sun. Its dual form Nunt referred to both the sun and moon (PE21/38).
Qenya
ran
noun. beam of wood
nú
proper name. Moon
ramba
noun. beam of wood
A word appearing in the Declension of Nouns (DN) glossed “beam of wood” (PE21/27). It had a stem form of ramb- and a longer variant ramba, but in Tolkien’s later writings ramba was “wall”.