Definition of Darius I in English:

Darius I

proper noun

  • (c.550–486 bc), king of Persia 521–486 bc; known as Darius the Great. After a revolt by the Greek cities in Ionia (499–494 bc) he invaded Greece but was defeated at Marathon (490 bc).

Pronunciation

Darius I

/dəˈrʌɪəs/