Ex Cappa is a spell of unknown effect.
- "Ex cappa" is Latin, meaning "from the hat".
- "Ex cappa" is a near-homophone of "escapa", which in several Romance languages is a present indicative or affirmative imperative form of the verb "escapar" (to escape) — which, given the context, seems fitting.
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.
- Harry Potter and the Deathly Hallows: Part 2 (Cut from final draft)