It is alphabetized to the third letter (i.e., ABC stage), indicating an organized, stable composition.
3321), probably copied in central Italy in the 8th century, it is accompanied by the Abolita Glossary.
The Abstrusa is transmitted separately in two manuscripts in the Bibliothèque Nationale de France (Paris lat.
Finally, the Second Amplonian Glossary contains entries clearly borrowed from the Abstrusa, but from a manuscript with variants not found in surviving copies.
[3] The main sources of Abstrusa are marginal scholia (explanations of the difficult words) found in copies of the Bible and the works of Virgil.