Gnomish
rodrin
adjective. cylindrical
rodos
noun. cavern
grûd
noun. cavern
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!
A noun for “cavern” in the Gnomish Lexicon of the 1910s based on the early root ᴱ√roto (GL/65). In early editions of the Gnomish Lexicon as published, the form was incorrectly given as rodrin, but errata confirmed that word actually meant “cylindrical” and the word for “cavern” was properly rodos (PEE for issue 11), as reported by Christopher Tolkien (LTA2/Rothwarin).