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Jus·tin·i·an I

(jŭ-stĭnē-ən) Originally Flavius Petrus Sabbatius Justinianus. AD 483-565.

Byzantine emperor (527-565) who held the eastern frontier of his empire against the Persians and reconquered former Roman territories in Africa, Italy, and Spain. He ruled jointly with his wife, Theodora.

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Justinian I

6th-century mosaic

Indo-European & Semitic Roots Appendices

Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:

Indo-European Roots

Semitic Roots

The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.

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