Apocrypha

Apocrypha, whose original Greek root (ἀπόκρυφος) literally means 'hidden away', has since the sixteenth century been applied first and foremost to certain ancient books which have been regarded as sacred in the Christian and Jewish faiths, but are now regarded as of spurious or doubtful authorship. Collectively these are known as The Apocrypha. Two extensions of the word, and its corresponding adjective apocryphal, have arisen.

• The term may be stretched to cover works other than the Bible. There are a number of plays which have at times been claimed to be the work of Shakespeare but whose authorship is regarded at best as unproved, and in general to have been written by someone else. These are called Shakespearean Apocrypha. Other well-known, or highly reputable, writers in various fields may have Apocrypha attributed to them - particularly if they were writing in manuscript or in the early days of printing, when control of authenticity and of editorship was rudimentary by modern standards.
• The adjective apocryphal is used as a dismissive term in academic life to denote evidence that is not supported by reliable (mostly printed) sources. These are often pieces of conversational knowledge, urban myths, hearsay, or 'common knowledge' - often demonstrably wrong. See also anecdotal.

AWE has a list of Biblical Apocrypha. You may also want to see articles on the Bible or Books of the Bible.