The Dictionary of Ecclesiastical Latin includes approximately 17,000 words with the common meanings of the Latin terms found in church writings. Entries cover Scripture, Canon Law, the Liturgy, Vatican II, the early church fathers, and theological terms. An appendix provides descriptions of ecclesiastical structures and explains technical terms from ecclesiastical law. The Dictionary of Ecclesiastical Latin has already been widely praised for its serviceability and indispensability in both academic and Church settings and will prove to be an invaluable resource for theological students and for those seeking to improve their knowledge of ecclesiastical Latin.
Very good tool for ecclesiastical and medieval Latin
This is a specialized work, and the student of classical Latin won't have much use for it. But it's very useful for reading the Vulgate, liturgical Latin, and in fact I find it my first look-up tool for much medieval Latin, since much medieval Latin which isn't strictly speaking ecclesiastical was nevertheless written by churchmen whose Latin was heavily influenced by ecclesiastical works. The book is physically well produced and priced more reasonably than such specialist works usually are. People who read much Latin of the sorts I've mentioned will find this book worth having.