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"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[src]

The Shrinking Charm[2] (Reducio)[1] is a charm that causes an object to shrink.[2] It is the counter-charm to the Engorgement Charm, causing enlarged objects to return to their original size.[1] The Shrinking Charm is also used as the potion-making spell for the Shrinking Solution.[3]

The use of a Shrinking Charm on a human is considered both complicated and dangerous.[4]

History

During the 1985–1986 school year, the Shrinking Charm was covered in second year classes at Hogwarts School of Witchcraft and Wizardry.[4]

Known practitioners and uses

Caster(s) Date Notes
Jacob's sibling 1985–1986 school year Jacob's sibling used an Engorgement Charm alongside the Shrinking Charm to sneak into another House common room.[4]
Accidental Magic Reversal Squad August 1993 The Accidental Magic Reversal Squad was called when Harry lost his temper and non-verbally cast the Inflating Charm on Marge causing her to inflate. They shrank her back to her normal size and used the Memory Charm to wipe her memory of the event.[5]
Arthur Weasley August 1994[6] Arthur Weasley used this charm to shrink the size of Dudley Dursley's swelled tongue after Fred Weasley purposefully gave him a Ton-Tongue Toffee, at 4 Privet Drive.
Bartemius Crouch Junior September 1994 Whilst impersonating Alastor Moody, after having enlarged a spider with the Engorgement Charm, used this to return it to its normal size, during a fourth year Defence Against the Dark Arts lesson.[1]
Poppy Pomfrey October 1994 When Hermione Granger was hexed by Draco Malfoy, her front teeth grew huge. Madame Pomfrey shrunk her teeth with this spell. Hermione used this occasion to avoid having braces because her teeth were originally larger than normal teeth and caused her to be compared to a chipmunk by other students.[7]
Harry Potter 27 December, 1997 Harry, who had enlarged a spider with an Engorgement Charm with another's wand, tried to use this to return it to its normal size, but it didn't work. Later, he used it after he enlarged a lamp fire after he got another wand.[8]

Known practitioners

Etymology

The incantation is a Latin word meaning "to reduce" or "is reducable", fitting for this spell's effects[9].

Behind the scenes

See also

Appearances

Notes and references

  1. 1.0 1.1 1.2 1.3 1.4 1.5 Harry Potter and the Goblet of Fire, Chapter 14 (The Unforgivable Curses)
  2. 2.0 2.1 2.2 2.3 2.4 Wonderbook: Book of Spells
  3. Wonderbook: Book of Potions
  4. 4.0 4.1 4.2 4.3 4.4 Harry Potter: Hogwarts Mystery, Year 2, Chapter 2 (Growing and Shrinking) - Charms Lesson "Reducio"
  5. Harry Potter and the Prisoner of Azkaban, Chapter 4 (The Leaky Cauldron)
  6. 6.0 6.1 Harry Potter and the Goblet of Fire, Chapter 4 (Back to The Burrow)
  7. 7.0 7.1 Harry Potter and the Goblet of Fire, Chapter 18 (The Weighing of the Wands)
  8. 8.0 8.1 Harry Potter and the Deathly Hallows, Chapter 20 (Xenophilius Lovegood)
  9. See this translation, courtesy of Google Translate


Charms (class)
PS Wingardium Leviosa feather
Charmbook writers and developers
Blagdon Blay · Daisy Pennifold · Delfina Crimp · Miranda Goshawk · Jarleth Hobart · Basil Horton · Randolph Keitch · Levina Monkstanley · Orabella Nuttley · Mnemone Radford · Scarpin · Elliot Smethwyck · Felix Summerbee · Fred Weasley · George Weasley · Violeta Stitch
Professors Fortinbras · Filius Flitwick
Textbooks Achievements in Charming · Extreme Incantations · Quintessence: A Quest · The Standard Book of Spells
Charms studied at Hogwarts
Banishing Charm (Depulso) · Cheering Charm · Cistem Aperio · Colour Change Charm (Colovaria) · Dancing Feet Spell (Tarantallegra) · Descendo · Disillusionment Charm · Drought Charm · Eradication Spell (Deletrius) · Engorgement Charm (Engorgio) · Exploding Charm (Bombarda) · Fire-Making Spell (Incendio) · Freezing Charm (Immobulus) · Freezing Spell (Glacius) · Full Body-Bind Curse (Petrificus Totalus) · General Counter-Spell (Finite Incantatem) · Growth Charm · Knockback Jinx (Flipendo) · Leg-Locker Curse (Locomotor Mortis) · Levitation Charm (Wingardium Leviosa) · Locking Spell (Colloportus) · Locomotion Charm (Locomotor) · Mending Charm (Reparo) · Memory Charm (Obliviate) · Muffliato Charm (Muffliato) · Nonverbal spell · Pack Charm (Pack) · Red Sparks (Vermillious) · Reductor Curse (Reducto) · Scouring Charm (Scourgify) · Seize and Pull Charm (Carpe Retractum) · Severing Charm (Diffindo) · Shrinking Charm (Reducio) · Silencing Charm (Silencio) · Slowing Charm (Arresto Momentum) · Skurge Scouring Charm (Skurge) · Softening Charm (Spongify) · Spell for growing legs · Substantive Charm · Summoning Charm (Accio) · Tickling Charm (Rictusempra) · Unlocking Charm (Alohomora) · Vinegar into Wine · Wand-Extinguishing Charm (Nox) · Wand-Lighting Charm (Lumos) · Wand-Lighting Charm Duo · Lumos Maxima · Water-Making Spell (Aguamenti)
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