Dictionarium seu linguae latinae thesaurus
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The Dictionarium seu linguae latinae thesaurus was a groundbreaking Latin dictionary published by Robert I Estienne in 1531. This work is considered a landmark in lexicography, not only for the Latin language but also for its influence on dictionaries of other languages. Estienne, a scholar-printer, was appointed the king's printer for Hebrew and Latin works in France in 1539.1
The term "thesaurus" itself, meaning a treasury of words or information, was later applied to books of synonyms, notably Peter Mark Roget's Thesaurus of English Words and Phrases in 1852. While Estienne's work was a comprehensive dictionary, the modern concept of a thesaurus often refers to a collection of synonyms and related words.23
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