paper cover; wrapper; wrapping paper
Refers to a paper covering or wrapping, such as a dust jacket on a book, a paper wrapper around a package, or decorative wrapping paper.
この本の上紙が破れてしまった。
The dust jacket of this book got torn.
贈り
I put a nice paper wrapper on the gift.
Compound of 上 (うわ, 'upper, outer') and 紙 (がみ, 'paper'). The exact historical derivation is uncertain, but the spelling is conventionally associated with the meaning of a paper covering or wrapper.