From a classical Greek epithet of the goddess Artemis, referring to her birth on the island of Delos (compare Cynthia). It was taken up by the pastoral poets of the 17th century, and has been moderately popular ever since. It is particularly associated with the cookery writer and broadcaster Delia Smith.
Spanish (Hernández) and Jewish (Sephardic): patronymic from the personal name Hernando (see Fernando). This surname also became established in southern Italy, mainly in Naples and Palermo, since the period of Spanish dominance there, and as a result of the expulsion of the Jews from Spain and Portugal at the end of the 15th century, many of whom moved to Italy.