In Greek mythology, Laius, king of Thebes, consulted the oracles and was told that he would have a son. This son was going to kill him. ... The name Oedipus means “swollen feet”.
Oedipus Rex is a classic Greek epic, so it makes sense that his name would come from the Greek language. According to Wikipedia, Oedipus means "swollen foot" and originated from the Greek word "Oidípous".
