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.