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!

Qenya 

more

adjective. black, dark

móre

noun. blackness, dark, night

hui

proper name. Night

A name for (Primordial?) Night appearing in The Etymologies from the 1930s as a derivative of the root ᴹ√PHUY, along with its (archaic?) variant Fui (Ety/PHUY).

Conceptual Development: This name is most likely a remnant of the name ᴱQ. Fui from the earliest Lost Tales, where it was another name for the goddess ᴱQ. Nienna (LT1/66, LT1A/Fui). According to the Qenya and Gnomish Lexicons from the 1910s, this earlier version of the name is derived from the root ᴱ√ǶUẎU (GL/36, QL/38).

núre

noun. night