Definition from Wiktionary, the free dictionary
pseudepigrapha (plural only)
- writings falsely ascribed to famous persons (historical or mythical) to give texts greater legitimacy. Such compositions -- for example, the Περὶ Κόσμου of Pseudo-Aristotle, De unius in re publica dominatione by Pseudo-Plutarch, the Liber Antiquitatum Biblicarum by Pseudo-Philo, the Liber fornacum of Pseudo-Geber, the Psalms of Solomon by Pseudo-Solomon, etc. -- were usually composed many centuries after the ostensible author had died.