Abstrusa Glossary

The Abstrusa Glossary is a glossary of Latin from the 7th or 8th century AD. Typical of such glossaries, it is named after its first lemma, "abstrusa".
The "Abstrusa" was probably compiled in Gaul, possibly in Aquitaine, since the compiler provides Gaulish "uerna" as a vernacular translation of Latin "alnus". It is alphabetized to the third letter (i.e., ABC stage), indicating an organized, stable composition.
The "Abstrusa" can be found in five manuscripts and one fragment. In the oldest of these (Vatican lat. 3321), probably copied in central Italy in the 8th century, it is accompanied by the "Abolita Glossary". The same two glossaries are found together in a 10th-century manuscript from Monte Cassino (Cass. 439), which originated in Spain. Although they appear together, the two glossaries are distinct, making use of different sources and containing different definitions. The "Abstrusa" is transmitted separately in two manuscripts in the Bibliothèque Nationale de France (Paris lat. 7691 and lat. 2341). Both are written in Caroline minuscule. Paris lat. 7691 was copied at Reims in the 9th century. A further copy is found in Vatican lat. 6018. There is a 9th-century fragment (Berne A 92, fr. iii) in Visigothic minuscule, probably from Aquitaine. Finally, the "Second Amplonian Glossary" contains entries clearly borrowed from the "Abstrusa", but from a manuscript with variants not found in surviving copies.
The main sources of "Abstrusa" are marginal "scholia" (explanations of the difficult words) found in copies of the Bible and the works of Virgil. Some of the glosses can be traced to the Virgilian commentaries of Aelius Donatus (and to a lesser extent Servius) and the "Appendix Vergiliana", but not to the commentaries of Festus (in contrast to the "Abolita").
The "Abstrusa" seems to have been used by the author of the "Proverbia Grecorum", probably writing in Ireland in the 7th or 8th century. It was a major source for the 9th-century "Liber glossarum". The original version of the "Abstrusa" may have been longer than any surviving copy, since its glosses in the "Liber" are often longer, suggesting that in its independent transmission it was frequently shortened.