Deuterocanonical is a term first coined in 1566 by the theologian Sixtus
of Siena to describe scriptural texts of the Old Testament whose canonicity
was explicitly defined for Catholics by the Council of Trent. Their acceptance
among early Christians was not universal, but regional councils in the West
published official canons that included these books as early as the fourth
and fifth centuries.
The Catholic deuterocanonical scriptural texts as defined by the Council
of Trent and following the listing of The New English Bible are:
Pseudepigrapha [Gr.,=things falsely ascribed], meaning "books with false
titles," refers to books similar in type to those of the Bible whose authors
gave them the names of persons of a much earlier period in order to enhance
their authority. The Pseudepigrapha is a collection of early Jewish and some
Jewish-Christian writings composed between c.200 B.C. and c.A.D. 200, not
found in the Bible or rabbinic writings.