The crossword solution for the term OEDIPUS, E.G. is REX, a three letter word. Oedipus REX, also known as Oedipus the King, is a tragedy written by the ancient Greek playwright Sophocles. It tells the story of Oedipus, a man who unknowingly kills his father and marries his mother. The play is considered one of the greatest works of literature in Western culture and has been adapted into numerous films, operas, and other works of art.