The biblical apocrypha (from the Greek ἀπόκρυφος, apókruphos, meaning "hidden") denotes the collection of ancient christian books found in some editions of Christian Bibles in a separate section between the Old and New Testaments or as an appendix after the New Testament. Some Christian Churches include some or all of the same texts within the body of their version of the Old Testament. Although the term apocrypha had been in use since the 5th century, it was in Luther's Bible of 1534 that the Apocrypha was first published as a separate intertestamental section.
🙂 Apocrypha book list is split into two lists of books for faster webpage loading. 🙂
Bruce, F.F. “The Canon of Scripture”. IVP Academic, 2010, Location 1478–86 (Kindle Edition).