Gnomish
lî
noun. folk, many people, ‘they’, a crowd of folk
-rim
suffix. *many
cing(win)
noun. spider
ging
noun. spider
gung
noun. spider
ungwi
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 noun for “spider” in the Gnomish Lexicon of the 1910s with variants cing and cingwin (GL/26). Tolkien indicated this word was related to G. cang “tangled” (GL/25), which was probably based on the early root ᴱ√KAŊA “weave, twine” (QL/45, 98). The i in cing indicates the primitive form was probably kŋ̣g-, since short syllabic nasals became in in Gnomish.