Gnomish
ness
noun. water meadow; long grass
colw
adjective. black
drim
noun. dew
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.
ness
noun. water meadow; long grass
colw
adjective. black
drim
noun. dew
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 “dew” in the Gnomish Lexicon of the 1910s (GL/30), probably related to the early root ᴱ√RIŊI given its derivative ᴱQ. rin (ring-) “dew” (QL/80).