Gnomish
faug
noun. wood smoke
faug
adjective. stinking
golog
adjective. stinking
golw
adjective. stinking
luib
adjective. thirsty
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 “wood smoke” in the Gnomish Lexicon of the 1910s (GL/34), probably related to words like G. fug- “smoulder” (GL/36).