Thayer's Greek Lexicon

 Diana = "complete light: flow restrained"
1. Artemis, that is to say the so called Tauric or Persian or
Ephesian Artemis, the goddess of many Asiatic people, to be
distinguished from the Artemis of the Greeks, the sister of
Apollo. A very splendid temple was built to her at Ephesus, which
was set on fire by Herostratus and reduced to ashes; but
afterwards in the times of Alexander the Great, it was rebuilt in
a style of greater magnificence.