This dictionary is an indispensable guide to the study of the Latin Middle Ages. It records the continuing usage of classical and late Latin in this period (6th-16th centuries), but it presents most fully the medieval developments of the language, drawing on a rich variety of printed and manuscript sources. Many new formations from other languages are revealed - some of the borrowings recorded in Latin centuries before their appearance in written vernacular sources. This is the second of the slimmer format fascicules, which are appearing more frequently.