Origin: Latin suffix -ment
New testament has 2 different meanings across 2 categories:
the collection of books of the Gospels, Acts of the Apostles, the Pauline and other epistles, and Revelation; composed soon after Christ's death; the second half of the Christian Bible
The second half of the Christian Bible, which includes the four Gospels, the Book of Acts, the Epistles, and the Book of Revelation.