Quenya 

ceuran

noun. new-moon

A word appearing in notes from the late 1960s glossed “new-moon” and derived from primitive ✶keu̯rānā (VT48/7), a combination of Q. ceura “renewed” and Q. Rána “Moon”.

ceuran-

new moon

ceuran- ("k") noun "new moon" (compare Rána "moon"). The word is cited with a final hyphen, as if some final element is missing, but Rána could very well be reduced to -ran at the end of a compound. (VT48:7)