Greek: "hidden"

Portions of the Latin Vulgate Old Testament that are not part of the Hebrew Bible canonized by the rabbis (ca. 90 CE). Most of these works were preserved in the Greek version of Jewish scriptures traditionally called the Septuagint. The distinction between public & hidden works can be traced to this passage in 2 Esdras: 

"These words you shall publish openly, 
and these you shall keep secret" (14:6). 

Thus Jerome, in translating these works into Latin, proposed that they be printed as a separate section, between the Old & New Testaments. Apocryphal works cited in this text are:

• 1 Maccabees

• Wisdom of Jesus ben Sirach

• 2 Esdras.

[Edition used: Rahlfs, Alfred, ed. Septuaginta. Stuttgartt: Deutsche Biblestiftung, 1935.]

Other online resources:

• The Old Testament Apocrypha - RSV edition of works in standard canonical apocrypha [posted by Wesley Center Online (Northwestern Nazarene U)].

• Apocrypha - article in Wikipedia's web.