A word in the Gnomish Lexicon of the 1910s glossed “falling”, a noun form of G. dod- “fall down, drop” (GL/30).
Gnomish
telt
noun. lid
dodri
noun. falling
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 “lid” in the Gnomish Lexicon of the 1910s based on the early root ᴱ√tel- “cover in; close; finish” (GL/70).
Neo-Sindarin: The roots √TEL “close, complete” and √TELU “roof in” survive in Tolkien’s later writings, so I’d retain ᴺS. telt “lid” for purposes of Neo-Sindarin.