Glossary of Common Latin Terms Found in Imprints of Early Printed Books Compiled by Robert L. Maxwell.
Despite my association with markup technologies, I have a long standing fascination with libraries and research into materials created long before the advent of digital texts.
One aspect of using such materials is decoding the meaning of Latin terms, known to scholars at the time of publication, but that have passed from scholarly practice over the centuries.
This glossary by Maxwell will be useful for Latin terms, but I’m also putting A Manual of European Languages for Librarians on my wish list. That link is to the 1976 edition, as the more recent (1999) lists for $128 and some change. With better pricing, the 1999 edition could be part of every scholar’s bookself. Given the publisher, that seems unlikey.