Early Quenya
liante
noun. tendril, vine
i·liante sa
that vine
sanda liante
that vine
ungwe
noun. spider
kangaris
noun. spider
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 word for “spider” in the Qenya Lexicon of the 1910s, based on the verb ᴱQ. kanga- “weave, spin” from the early root ᴱ√KANGA (QL/45), also appearing in the contemporaneous Poetic and Mythological Words of Eldarissa (PME/45).