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Dionysius Thrax

Greek grammarian

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Dionysius Thrax was a Greek grammarian active around 120 BCE. He is associated with the Alexandrian school of grammar, which emphasized analogy in language. His work, if genuine, shows the influence of the Stoics on Alexandrian grammar.1

Dionysius Thrax produced the first systematic grammar in the Western tradition, focusing on word morphology. His definition of grammar was "the acquaintance with [or observation of] what is uttered by poets and writers". His work covered topics such as pronunciation, poetic figurative language, difficult words, and the exposition of form-classes. The study of sentence syntax, which Dionysius touched upon, was later developed by Apollonius Dyscolus in the 2nd century CE.23

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