Medieval Latin
Lewis and Short's primary focus is on classical Latin, not medieval Latin. Nevertheless, Lewis &amp; Short is consulted by medievalists, renaissance specialists, and early modernists, as it includes some Late and Medieval Latin, if somewhat inconsistently, and classical Latin usages are very relevant in medieval Latin. The "Dictionary of Medieval Latin from British Sources" supplements Lewis &amp; Short for medieval Latin vocabulary. Another dictionary focused on medieval Latin is J. F. Niermeyer's "Mediae Latinitatis Lexicon Minus", first published in 1976, with an enhanced second edition in year 2002, about 1500 pages. The medieval Latin dictionary "Glossarium ad scriptores mediae et infimae latinitatis" by Du Cange was originally published in 3 volumes in 1678, it was expanded to 10 volumes during the 18th and 19th centuries, and it is probably still the most frequently used dictionary for medieval Latin vocabulary.