Aviatus

Aviatus is a spell ; judging by the etymology, it may be related to flight or levitation.

Etymology
"Aviatus" is Latin for "aviator".

Behind the scenes

 * In early drafts of the eighth film, Hermione Granger used this spell to try to notify the dragon that it was free, to no avail.

Appearances

 * Harry Potter and the Deathly Hallows: Part 2