Gnomish
maug
adjective. silent
maugli
adjective. secret, hidden
cwist
noun. secret
mugwen
adjective. secret
Beware, older languages below! The languages below were invented during Tolkien's earlier period and should be used with caution. Remember to never, ever mix words from different languages!
An adjective for “silent” in the Gnomish Lexicon of the 1910s related to mug- “keep silent” (GL/57-58).