|Muggles' Guide to Harry Potter - Magic|
|Features||Revives the subject|
|First Appearance||Harry Potter and the Half-Blood Prince|
Renervate is a general revival spell, used when trying to resuscitate someone who has been left unconscious by magical means. In some editions of the books, it is mistakenly spelled "rennervate".
This may seem to be a special version of Enervate, the charm that counters the effect of a Stun spell, as it seems to be used for more general resuscitation. As mentioned in the article on that spell, however, "enervate" is in direct opposition to the action of that spell, so the author apparently chose to rename the spell in the course of writing the books. We further note that in some early editions of the later books it was misspelled "rennervate", a misspelling that was corrected in later editions.