Dorothy comes from the Greek Dōrothea (Δωροθέα) — dōron (gift) and theos (god) — meaning "gift of God." Theodora has the same elements in reverse.
Dorothy was the second most popular U.S. girls' name from 1925 to 1929. Dorothy Gale in The Wonderful Wizard of Oz (1900) is the most enduring fictional bearer. Today Dorothy is returning, sitting in the U.S. top 500 and climbing fast.
Dorothy reduces to seven — the number of given grace.