Gnomish
gwilm
noun. peace, quiet, rest; cessation
û gwilthi - gwilm ’othwenion
*it is not peace - [the] cessation of battles
gwilthi
noun. peace
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 glossed “quiet, rest, peace” and “cessation” in the Gnomish Lexicon of the 1910s, derived from the early root ᴱ√gwil- (GL/45). It was also mentioned in the Name-list to the Fall of Gondolin (PE15/24), where gwilm was glossed “peace” (PE15/27).