“ PSEUDONYM (Gr. ψευδώνυμος, having a false name, ψευδής, false and ὄνυμα, name) , a false or invented name, particularly the fictitious name under which an author produces his work in order to conceal his identity. The same end is gained by publication without any name, i.e. anonymously (Gr. ἁνώνυμος, without a name) . The body of works thus produced either without the author's name or under a fictitious name is known as anonymous and pseudonymous literature, and many books have been published affording a key to the identity of the various writers, forming an important section of bibliography. ”

“ The anonymous and pseudonymous Latin literature of the middle ages has been treated in modern times by A. Franklin, Dictionnaire des noms, &c., latins 1100–1530 (1875) , and A. G. Little, Initia operum latinorum saec. ”