The result of more than three decades of dedicated scholarly research, the Lexicon Gregorianum constitutes the most comprehensive dictionary ever produced of the language of Gregory of Nyssa. The Lexicon Gregorianum is, and will remain for the foreseeable future, the only dictionary available that specifically addresses the vocabulary of late Classical Greek. This seminal German-Greek reference work is far more than a list of words: it documents Gregory's entire vocabulary, taking account of the syntax, meaning and connotations of every occurrence of a key word in his writings. The complete Lexicon comprises 10 volumes, totaling more than 13,000 entries.