Its source is Kynthia, a Greek name meaning "From Mount Kynthos."
This name originated as a descriptive phrase applied to the ancient Greek goddess Artemis (known to the Romans as Diana. The original meaning of the Greek mountain's name has been lost.
Great Britain's Queen Elizabeth I (1533-1603), an unmarried monarch, was often compared to Artemis, who was the goddess of chastity as well as the moon. In many high-flown works of Elizabethan poetry, praises for Cynthia's goodness and purity were understood as oblique references to the virtues of the Virgin Queen.