Dorothea is of Greek origin, meaning 'gift of God'. It was popular among early Christians and has been used throughout history by notable figures such as Dorothea Dix, an American social reformer, and Dorothea von Schlegel, a German writer.
"The name Dorothee experienced significant popularity from 1914 onwards, with a notable peak of 48 births in 1921 and another peak of 49 births in 1922. However, it started declining afterwards, becoming quite uncommon after the late 1930s."