Gnomish
-loth
suffix. -grown
loth
place name. Flower, Rose
lôs
noun. flower
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 suffix for “grown” in the Gnomish Lexicon of the 1910s as in G. liscaloth “reedy, reed grown” (GL/54). It thus means “grown” in the sense “overgrown with”. It might be related to the early root ᴱ√LOHO having to do with flowers and blooming (QL/55).