Great primer is a large font size (18 points) that was used in the printing of English Bibles and other large-format books, leading to its other name of Bible Text. The largest size ever (or at least up to about 1843) used in England for printing books,[1] it was several sizes larger than English (14 pt) but smaller than paragon (20 pt). It was known in Italian as testo.[2] Other synonyms include Double Bourgeois, 18-point, Gros Romain (French), Text (Dutch) and Tertia (German).
Great-primer size fonts have been in use since William Caxton, around 1488.[3]