Ecstatic has been used in our language since the late 16th century, and the noun ecstasy is even older, dating from the 1300s. Both derive from the Greek verb existanai ("to put out of place"), which was used in a Greek phrase meaning "to drive someone out of his or her mind." That seems an appropriate history for words that can describe someone who is nearly out of their mind with intense emotion. In early use, ecstatic was sometimes linked to mystic trances, out-of-body experiences, and temporary madness. Today, however, it typically implies a state of enthusiastic excitement or intense happiness.