J.R.R. Tolkien used the term eucatastrophe for a sudden joyful turn that brings deliverance after apparent disaster. He introduced the word in his 1947 essay “On Fairy-Stories.”
Tolkien formed the term from Greek roots meaning “good” and “disaster.” He described it as the opposite of catastrophe: not the denial of sorrow, but a sudden change in the story’s direction that produces hope and joy. For Tolkien, the best fairy-stories could offer readers a glimpse of that emotional experience.
The concept is often linked to moments such as the rescue of Frodo’s company by the Eagles or the destruction of the Ring, although individual examples can be debated. Eucatastrophe is not simply any happy ending; it specifically emphasizes an unexpected, redemptive turn after the story seems lost.