Matthew 1:1 The book (biblos) of the generation of Jesus Christ, the son of David, the son of Abraham.
Philippians 4:3 And I intreat thee also, true yokefellow, help those women which laboured with me in the gospel, with Clement also, and with other my fellowlabourers, whose names are in the book (biblos) of life.
Greek - biblos - a written book
"early 14c., from Anglo-Latin biblia, Old French bible (13c.) "the Bible," also any large book generally, from Medieval and Late Latin biblia (neuter plural interpreted as feminine singular), in phrase biblia sacra "holy books," a translation of Greek ta biblia to hagia "the holy books," from Greek biblion "paper, scroll," the ordinary word for "book," originally a diminutive of byblos "Egyptian papyrus," possibly so called from Byblos (modern Jebeil, Lebanon), the name of the Phoenician port [http://www.etymonline.com/index.php?term=Bible]
The Holy Spirit used the word throughout scripture. You didn't show anything other than a possibility. I'll go with the Holy Spirit. K?
So by your admission we can stick with the meaning Papyrus since that is the one that even predates book.