Engorgement Charm

"These straightforward but surprisingly dangerous charms cause certain things to swell or shrink. You will be learning both charms together, so that you can always undo an over-enthusiastic cast. There is thus no excuse for having accidentally shrunk your homework down to microscopic size or for allowing a giant toad to rampage through your school’s flower gardens."

- Miranda Goshawk

The Engorgement Charm (Engorgio ) is a charm that causes the target to swell immensely. If the caster attempts to engorge the target beyond a certain point it will violently explode. Although this spell is safe to use on animals, it is not recommended until the counter-charm has been perfected.

Effect
It appears as a circle of icy blue light emanating from the tip of the wand, much like a torch. Anything within this circle will grow exponentially, bouncing and shivering.

History
Miranda Goshawk included this charm in The Standard Book of Spells, Grade 2, the third spell in the book. She also wrote about it in Book of Spells alongside the Shrinking Charm, which can be used to counteract this charm.

In 1998 Harry Potter cast this spell along with its counter-charm as a way of testing the Blackthorn wand he was using in place of his original wand, which was broken a few days prior on Christmas eve.

Practitioners

 * Bartemius Crouch Jr.
 * Fred Weasley
 * George Weasley
 * Harry Potter
 * Kevin
 * Rubeus Hagrid
 * Silvanus Kettleburn

Etymology
The word engorge means "to fill to excess".

Behind the scenes

 * Ronald Weasley suspected that Rubeus Hagrid might have gotten in the way of a bad Engorgement Charm when he was a kid, not realising that he was half-giant.
 * A variation of this spell may be Engorgio Skullus, which makes the head of a person bigger.

Appearances

 * Harry Potter and the Chamber of Secrets
 * Harry Potter and the Prisoner of Azkaban (film)
 * Harry Potter and the Goblet of Fire
 * Harry Potter and the Goblet of Fire (film)
 * Harry Potter and the Deathly Hallows
 * Harry Potter and the Deathly Hallows: Part 1
 * Harry Potter Trading Card Game
 * The Tales of Beedle the Bard
 * Pottermore
 * Wonderbook: Book of Spells

Notes and references
Sortilège d'Engorgement Incantesimo di Ingozzamento