Qenya
ní Archaic
noun. woman, female
ni
pronoun. I, me
nis
noun. woman (of any kindred: elf, human or dwarf)
-nye
suffix. I
inárea ní
as old as I am
nessa
adjective. young
nisse
noun. woman
nye
pronoun. me, I
unda-
verb. to sink
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.
An archaic noun in The Etymologies of the 1930s glossed “woman” or “female” directly derived from the root ᴹ√NĪ, in ordinary speech usually replaced by ᴹQ. nis (Ety/INI, NĪ¹).
Conceptual Development: ᴱQ. nî “woman” appeared in the Gnomish Lexicon of the 1910s as a cognate to G. †nîr of the same meaning (GL/60).