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.
vaine
noun. sheath, pod
vaino
noun. sheath, pod
ya(n)
conjunction. and
The usual word for “and” in the 1910s was ᴱQ. ya(n) (PE15/69, VT40/8). It was derived from the early root ᴱ√YA (or possibly ᴱ√(D)YṆTṆ) in the Qenya Lexicon of the 1910s (QL/104-105). In his later writings, the usual word for “and” was Q. ar, but something like ya(n) survived in the “dual” conjunction yo “both ... and”.
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 noun appearing as ᴱQ. vaine “sheath, pod” the Qenya Lexicon of the 1910s under the early root ᴱ√VAẎA “enfold, wind about” (QL/100). It was followed by -o, probably indicating a variant form [vain]o; compare ᴱQ. vainole “quiver”.
Neo-Quenya: I would retain ᴺQ. vainë “sheath, pod” for purposes of Neo-Quenya, based on the later root ᴹ√WAY “enfold” (Ety/WAY).