1 an overwhelming feeling of joy or rapture.
2 Psychol. an emotional or religious frenzy or trancelike state.
3 sl. methylenedioxymethamphetamine, a powerful stimulant and hallucinatory drug (see MDMA).
Etymology: ME f. OF extasie f. LL extasis f. Gk ekstasis standing outside oneself f. ek out + histemi to place
Useful english dictionary. 2012.