Lexicon Tetraglotton, an English-French-Italian-Spanish Dictionary: Whereunto is Adjoined a Large Nomenclature of the Proper Terms (in All the Four) Belonging to Several Arts and Sciences, to Recreations, to Professions Both Liberal and Mechanick, &c. Divided Into Fiftie Two Sections; with Another Volume of the Choicest Proverbs in All the Said Toungs, (consisting of Divers Compleat Tomes)

The Lexicon Tetraglotton was compiled by the historian and polemicist James Howell and published in London in 1660. It was conceived during the mid-seventeenth century as an ambitious polyglot reference tool intended to facilitate linguistic exchange among English, French, Italian, and Spanish speakers. Howell designed the work to be more than a simple vocabulary list, incorporating fifty-two distinct sections that categorized terms by profession, recreation, and the liberal arts, reflecting the era's growing interest in systematic classification and humanistic scholarship.

The dictionary is particularly noted for its second volume, which includes an extensive collection of proverbs across the four languages, demonstrating Howell's belief in the importance of idiomatic wisdom as a key to cultural understanding. The work was produced in the immediate wake of the English Restoration, and while it was a significant scholarly undertaking for the period, it was received primarily as a niche reference for the well-educated elite rather than a popular commercial success. It remains a valuable resource today for historians studying seventeenth-century philology and the evolution of European cross-linguistic communication.