kykeon is incorrectly written and should be written as "kykeon ( kikeon )" being its meaning:
Greek kykeon kykeonos ( 41 concoction; the verb kykao ( mix, shake to mix ). It was the concoction of water and herbs taken by participants in the rites of the mysteries of Eleusis, rites of initiation into the cult of Demeter and her daughter Persephone, that took place a few kilometers from Athens, in classical Greece, barley or rye. They took it at the climax of the ritual to break the fast. Given the visions cuasimisticas or hallucinations with widely disparate reactions from insiders, thought that the concoction contained ergot in a proportions controlled by the priests. Insiders swore to never let alone what happened there or your experiences. There is no evidence that they had killed someone, but this was always involved in the most absolute mystery.