Naugeo: Causes the victim's nose to grow in size.
Nefastus: Causes the victim to suddenly vomit and defecate profusely.
Nemesco: Conjures a short burst of wind.
Nemmio: Causes the victim to forget their name.
Nepacus: Transfigures the victim's hands into lobster claws.
Nescindo: One of the two "Backfiring Jinxes." Typically causes harm to the caster, although the produced effect is totally random. Effects are inclusive of -- but not limited to -- the caster growing a mustache, turning blue, shrinking, transfiguring, shooting into the air,turning into a pink smoke cloud,disapparating, frowning, exploding violently, losing appendages, and even dying. A common result is that their wand breaks, as in Attero.
Nimbus: Shrouds an area in a thick fog.
Niveus: Conjures snow.
Nobiscus: Enchants an object to follow the caster, or another person.
Nomisma: Conjures galleons that disappear after a period of time. Also known as "Leprechaun's Gold."
Norricto: Causes skin to grow over the victim's mouth, preventing speech.
Nossus: Removes bones.
Novacula: Throws blood from one's wand.
Nox: Extinguishes a wand illuminated by the spell Lumos.
Nuntius Expecto Patronum: Creates a talking Patronus which will tell whoever you choose whatever you want them to.
Obex: Barricades something, usually a door or window.
Obsapeo: Rigs the target area with an alarm.
Oblittero: Erases something (e.g. footprints; writing).
Obliviate: Erases memory.
Obrigesco: Causes something to stiffen. Useful on hands.
Obruo: Causes everything in the vicinity to be thrown at the victim.
Obscuro: Blindfolds the victim.
Obvallio: Causes a wall to erupt from the ground.
Offugno: Reaveals a hidden platform that was hidden by dark magic.
Oncorreo: Repels insects.
Oppleo: Plugs a hole.
Oppugno: Causes something (typically animals) to attack the victim.
Oppunco: Bends or perverts an object.
Optio: Throws a small ball of light from one's wand. Often used to illuminate long corridors.
Orchideous: Conjures flowers from the caster's wand.
Ossicus: Conjures a charmed skeleton.
Packpituitary: Packs assorted items into an object.
Pantulenyus Poopicus: Makes your victim poop their pants
Pallesco: Causes an object, or person, to become pale.
Pammesto: Covers an object with a tarp.
Pancrestus: Conjures a skeleton key.
Parmeo: Emblazons an object with a target.
Paterra: Conjures a bowl.
Pediculosis: Infests the victim with lice.
Periculum: Shoots red sparks out of one's wand as a location signal.
Peniculus: Conjures a sponge.
Pependi: Causes gravity to pull excessively hard on the victim.
Perpatesco: Causes an object to sprout legs.
Perpessus: Hardens skin.
Perplectus: Conjures a thick, nigh-impenetrable spider web.
Petrificus Totalus: The "Full Body-Bind Curse." Causes the victim's body to become entirely rigid, and immobile.
Phalesco: Coils, or rolls up, an item, e.g. rope, a carpet, parchment.
Picarus: Conjures a magpie.
Picassicus: Causes the victim to become intensely attracted to shiny objects.
Piertotum Locomotor: Animates inanimate objects, e.g. suits of armor.
Pilosus: Causes thick busy hair to grow all over the victim's face, including out of the nose and ears.
Pinnatus: Causes an object to sprout small wings, and fly about.
Pinocchio: Causes the victim's nose to grow substantially.
Piphalus: Causes the victim's mouth to burn. Also known as the "Pepper-Breath Hex."
Pituitarius Shrinky Dinky: makes your victim go back before puberty.
Plectrum: Conjures a quill.
Ploratus: Causes the victim to bawl, or cry.
Point Me: Causes the caster's wand to point North. The "Four-Point Spell."
Porrectio: Stretches an object.
Porrifors: Causes the victim to sprout leeks from their ears.
Portus: Turns an object into a Portkey.
Practus: Sharpens something.
Praeruptus: Smooths an incline, similar to Glisseo.
Prior Incantato: Causes a wand to reveal the last spell it performed.
Prolato: Causes an object to increase in length.
Propatulus: Opens an object.
Protego: Creates a magical shield to deflect spells. Can also be used to physically impede others.
Protego Horribilis: Protects an area from dark magic.
Protego Totalum: Disallows physical -- as well as most kinds of magical -- entry into an area.
Proteus: The "Protean Charm." Magically binds objects to the target object. Any change in the target object is subsequently reflected in the binded objects.
Pulvinexpulso: Banishes dust from an object.
Quam Celerrime: Speeds something up.
Quietus: Decreases the volume of a sound, typically one's voice. Useful for negating the Sonorus charm.
Quwin gwin Transfigures victim into a horned marton.
Ramale: Skewers something with a stick. Useful for making kebabs.
Rantisma: Pours wine from one's wand.
Rapneo: Removes theft-
preventing spells.
Reducio: Reduces an object's size. Useful for negating Engorgio.
Reducto: Blasts an object apart.
Refervesco: Causes a liquid to boil.
Relashio: Casts a strong blast of heat from one's wand, often accompanied by sparks. Underwater, produces scalding bubbles.
Reparo: Repairs an object.
Repello Muggletum: Causes Muggles entering an area to suddenly remember an important appointment and leave.
Repleo: Refills an object, typically goblets.
Restinxi: Sprays a fire-smothering foam from the caster's wand.
Revomai: Causes the victim to burp uncontrollably.
Rictusempra: Causes the victim to laugh uncontrollably; the "Tickling Charm."
Riddikulus; Causes an item, creature, or person to take on an amusing appearance. Particularly useful on Boggarts.
Robbigo: Causes something to rust.
Rostratus: Causes the victim to grow a beak.
Rubesco: Causes a person to blush.
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Harry Potter Guide
RandomA guide book to understanding the incredible world created by J. K. Rowling.