Geoffrey the Grammarian

Geoffrey the Grammarian (fl. 1440) (in Latin: Galfridus Grammaticus) was an English medieval monk and grammarian who wrote several treatises. Geoffrey was originally from Norfolk, England.^[1]

In the late 15th century, Geoffrey published the Thesaurus Linguae Romanae et Britannicae, which was the first English-to-Latin wordbook.^[2] The Promptorium parvulorum also is attributed to Geoffrey.