Adjective
pseudepigraphal (not comparable)
(of writings) Falsely attributed.
The text was almost unanimously considered pseudepigraphal when the Christian Biblical canon was decided upon, and does not appear in any Greek copies of the Bible at all, nor is it known in Syriac or other versions. Source: Internet
So popular were his works, that, for centuries after his death, Christian authors wrote hundreds of pseudepigraphal works in his name. Source: Internet