Paleography is a complex area of study. Please refer to the linked guides listed below, but note that enrollment in one of the paleography classes offered is recommended:
This section includes primarily Latin dictionaries, with some other medieval dialects in addition, and a general dictionary in English for the Middle Ages, as well as a bibliography of common tools. WMU holds hundreds of printed dictionaries to suit various needs. Consult your advisor or instructor regarding the best tools and books for the text.