Promptorium parvulorum

The Promptorium parvulorum (Latin: "Storehouse for children") is an English-Latin bilingual dictionary completed around 1440 AD.

[2] The authorship is attributed to Geoffrey the Grammarian, a friar who lived in Lynn, Norfolk, England.

[3] After the invention of the printing press, the Promptorium was repeatedly published in the early 16th century by the printer Wynkyn de Worde.

[3] In the 19th century, the Camden Society republished it under the extended title Promptorium parvulorum sive clericorum (“Storehouse for children or clerics”).

[1] For language historians it is a major reference work for the vocabulary of late medieval English.