How did Josef Jungmann expand the vocabulary of modern Czech?

Josef Jungmann played a pivotal role in the Czech national literary revival by systematically expanding and modernizing the Czech vocabulary. He achieved this primarily through two major avenues:

• Literary Translation: Jungmann utilized his translation work to introduce new terms and stylistic possibilities into the language, most notably through his 1811 translation of John Milton’s Paradise Lost.1
• Lexicography: He compiled a monumental Czech-German dictionary, published between 1835 and 1839, which served as a definitive resource for standardizing and broadening the lexicon of the modern Czech language.1

While Josef Dobrovský is credited with codifying the grammar and structure of the revived literary language, Jungmann’s efforts were essential in ensuring that the vocabulary was sufficiently robust and contemporary to support a flourishing national literature.21