José da Fonseca

A Portuguese linguist and lexicographer born in 1788, José da Fonseca became known for language manuals, dictionaries, and conversation books designed to help readers work across Portuguese, French, and English. Records tied to his published books place much of this work in Paris, where several of his reference works appeared in the 1830s and later.

His bibliography includes bilingual dictionaries and guides such as Novo diccionario portatil portuguez-francez e francez-portuguez and O Novo Guia da Conversação, works aimed at students, travelers, and anyone learning to communicate across languages. Rather than writing for a narrow scholarly circle, he seems to have focused on practical language learning and clear usage.

That makes his work especially interesting today: it offers not just vocabulary, but a glimpse of how people in the 19th century learned, translated, and spoke with one another across borders. He died in 1866.