Early Quenya
tupin
adjective. roofed, having a lid, having hat on
talda
adjective. covered
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 word appearing as ᴱQ. tupin “roofed, having a lid, having hat on” in the Qenya Lexicon of the 1910s, an adjective form of ᴱQ. tupu- “to roof, cover” under the early root ᴱ√TUPU (QL/95).
Neo-Quenya: Since √TUP “cover” survives in Tolkien’s later writings, I would retain ᴺQ. tupin “roofed, having a lid, having hat on” for purposes of Neo-Quenya, referring to a thing with another thing (such as a roof, a lid or a hat) covering its top.