THIS MIGHT SURPRISE YOU
The answer
"The books." It comes from the Greek ta biblia, "the books," a plural — the Bible is really a whole library bound as one volume.
Why it’s interesting
That plural is a quiet reminder of what the Bible is: dozens of writings, by many hands, across many centuries. The name is conventionally traced to Byblos, the port city associated with the papyrus trade — though that derivation is a reconstruction rather than a documented one.
Scholarly consensus
You can know the Bible.
Not just the stories, but the history, authorship, and scholarship behind it.