Circe, a sorceress who figures in the “Odyssey.” Ulysses having landed on her isle, she administered a potion to him and his companions, which turned them into swine, while the effect of it on himself was counteracted by the use of the herb moly, provided for him by Hermes against sorcery; she detained him with her for years, and disenchanted his companions on his departure.
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Circassia * Circean poison