An Introduction to Ecclesiastical Latin was written to meet the needs of students who desire to study the Latin language in the form it assumed in the hands of the Fathers of the Western Church and of their successors.
The book contains a summary of syntactic rules necessary for understanding the works of these writers, with an explanation of the points in which Ecclesiastical Latin differs from Classical Latin, and a selection of passages taken from the works of some of the principal authors of the period.
This Latin grammar by H. P. V. Nunn was published by Cambridge University Press in 1922 and is a very helpful tool for working with the Latin Vulgate. It is a descriptive grammar, rather than a textbook grammar.
Nunn is also the author of The Elements of New Testament Greek and A Short Syntax of New Testament Greek .