different between extasy vs ecstacy

English

extasy (countable and uncountable, plural extasies)

Obsolete form of ecstasy.
- 1749, John Cleland, Memoirs of Fanny Hill
  […] the sweet youth, overpower'd with the extasy, died away in my arms […]
- 1826, Mary Shelley, The Last Man, volume 2, chapter 12
  Afraid almost to breathe, we English travellers surveyed with extasy this splendid landscape, so different from the sober hues and melancholy graces of our native scenery.

ecstacy (plural ecstacies)

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