The name Thedora is of Greek origin, derived from the name Theodora which means 'gift of God'. It was popularized by Byzantine Empress Theodora, wife of Justinian I in the 6th century AD. In some variations, it is also considered a feminine form of Theodore, which means 'gift of God' as well. Thedora is often associated with elegance and sophistication, reflecting its imperial roots.
"The name Thedora experienced a peak in popularity between the years 1920 to 1928 with at least six births per year, reaching its highest point in 1925 with nine births. After this period, the number of births declined significantly, with only five births recorded each year from 1931 onwards until 1956."