Catholicon (trilingual dictionary)
Catholicon (from the Greek Καθολικόν, universal) is a Breton-French-Latin dictionary. It is the first Breton dictionary and also the first French dictionary. It contains six thousand entries and was compiled in 1464 by the Breton priest Jehan Lagadeuc and printed in 1499 in Tréguier. A manuscript of the dictionary is preserved in the national library in Paris identified as Latin 7656.
- Le Catholicon, reproduction of Jehan Calvez's edition (5 November 1499) from a copy at Rennes, edited by Christian-J. Guyonvarc'h, Éditions Ogam, Rennes, 1975
- --do.--New edition issued by éditions Armeline, Brest, 2005
- Catholicon de Jehan Lagadeuc, dictionnaire breton, français et latin, edited by René-François Le Men, Éditions et impression Corfmat, Lorient, 1867
- Le vocabulaire breton du Catholicon (1499), le premier dictionnaire breton imprimé breton-français-latin de Jehan Lagadeuc, edited by Gwennole Le Menn, (Bibliothèque bretonne; 11.) Imprimerie Keltia Graphic, Edition Skol (Spézet), 2001