The question of the pseudonymity of the book is still an open one.
Mrime's pseudonymity was of short duration, but whilst it lasted it was impenetrable.
Indeed, that is an argument in favour of the pseudonymity of the Book.
Associated words: pseudonymous, pseudonymity, pseudepigraphous pseudepigraphy.
All hypotheses as to their pseudonymity or composition by different hands may be dismissed.
The "pseudonymity" consists simply in clothing a conjecture with the appearance of indubitable fact.