Didyme

As a feminine Ancient Greek name, this is the feminine form of Didymos. It was borne by a mistress of the 3rd-century BC Egyptian king Ptolemy II Philadelphus. American children's author Stephenie Meyer used it for a character in her Twilight series.

As a masculine French name, this is the French form of Didymus. The apostle Thomas is occasionally referred to as Thomas Didyme in French (Didymos being a Greek translation of the name Thomas, which means "twin" from Aramaic).