Demetriu / Demetrios / Demetrius / Dmitry / Dimitri

Demetriu is a Romanian and Moldovan form of the Greek name Demetrius. The name Demetrius itself is derived from Demeter, the ancient Greek goddess of agriculture, harvest, and fertility. The suffix '-ius' is a common Latinization of Greek names, indicating 'son of' or 'devoted to'.

The name has a long history, being used in ancient Greece and later spreading throughout the Roman Empire. It gained popularity in Eastern Europe, particularly in Orthodox Christian countries, due to the veneration of several saints named Demetrius, most notably Saint Demetrius of Thessaloniki, a 4th-century martyr who is one of the most important military saints in Orthodox Christianity.