Gnomish
glaim
adjective. serene, clear, fair (espec. of weather)
gam
noun. shout
auba
noun. shout
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.
An adjective in the Gnomish Lexicon of the 1910s appearing as G. glaim “serene, clear, fair, espec. of weather” (GL/39), a cognate of ᴱQ. kalaina of similar meaning and hence based on the early root ᴱ√KALA [✱ᴱ√GALA] “shine golden” (QL/44).
Neo-Sindarin: I think G. glaim can be salvaged as ᴺS. glaen, since √GAL was still associated with light in Tolkien’s later writings, but I would derive it instead from the root ᴹ√GALAN “bright”, perhaps from ✱g(a)laina.