Qenya
móre
noun. blackness, dark, night
more
adjective. black, dark
hui
proper name. Night
núre
noun. night
There are more words but they are from Tolkien's earlier conceptional periods. Tolkien likely changed these words as he evolved the aesthetics and completeness of the languages. You may even find languages that Tolkien later rejected. Do not mix words from different time periods unless you are familiar with the phonetic developments.
Below: Tolkien's Late Period (1950–1973). These are from Tolkien's late conceptual period — his most settled forms of the languages. Prefer these over the earlier ones above when composing new text.
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).