Jelly-Legs Jinx

Makes the victim’s legs shake uncontrollably.

Knee-Reversal Jinx

When the ball from an early Quidditch game landed in Gertie Keddle’s cabbage patch, she was not impressed, and hexed the man who came to fetch it. The Knee-Reversal Jinx was the spell she used, which had the expected effect on his knees.

Knitting Charm

This charm enchants knitting needles. Hermione bewitched knitting needles to knit house-elf hats all by themselves for the SPEW cause.

Langlock

Glues the victim's tongue to the top of their mouth. Harry got this spell from the Half-Blood Prince and used it twice on Argus Filch and again on Peeves.

Leek Hex

Causes leeks to grow out of the ears. In the build-up to the Gryffindor vs Slytherin Quidditch match in 1994, a nasty incident occurred in which a Gryffindor 4th-year and a Slytherin 6th-year ended up in the hospital wing with leeks sprouting from their ears.

Legilimens

From the Latin root "lego," meaning "to gather, collect, pass through, read."

This is a practice very similar to Muggle mind-reading, except the Legilimens actually explores another's mind and sees the memories stored there. A skilled Legilimens can target the memories that are most hurtful, causing the most pain or fear and use that knowledge to manipulate the person whose mind they have entered. Occlumency is the defence of the mind against such an attack.

Levicorpus

From "levo", which is Latin for "to raise" and "corpus", which is Latin for "body". Dangles the victim by their ankle in mid-air. It looks as though an invisible hook is holding the person up. Harry cast this on Ron to find out what it did, and many years before, it was cast by James Potter on Severus Snape. This is ironic, as it was Snape that invented the spell.

Liberacorpus

From "libaro", which is Latin for "to set free" and "corpus", which is Latin for "body". The counter-spell to Levicorpus. It releases someone from being dangled upside-down so that they crash to the floor.

Locomotion Charm

Parvati and Lavender were practicing this spell in preparation for their OWLs, making their pencil cases race across the table. It is likely to be the same spell as Locomotor XXXX, shown below.

Locomotor Mortis

The Leg-Locker Curse. Causes the victim’s legs to lock together. The incantation for this spell is of a similar form to the “Locomotor�?spell but doesn’t seem to sit very happily with it, considering the very different effects.

Locomotor XXXX

“Loco�?is Latin for “place�? “Moto�?is Latin for “to move�? Causes an object to travel floating in the air. The incantation used is Locomotor XXXX, where XXXX is the object that the caster wishes to enchant.

Lumos

“Lumen�?is Latin for light. “Luminosus�?is Latin for “bright�? Produces light from the end of the caster’s wand.

Memory Creation Charm

Quite different from the Memory Charm "Obliviate", this spell actually creates false memories in the victim. It is an exceptionally complex piece of magic and so rare that the authorities do not even consider that it might have been done when they obtain confessions from criminals. This was certainly true in the case of Morfin Gaunt, who had a memory of killing the Riddle family placed in his mind by Voldemort and was sentenced to life in Azkaban.

Mobili-XXXXX

“Mobilis�?is Latin for “moveable�? When XXXXX is replaced by an object, the object is forced to move.

Morsmordre

“Mors�?is Latin for “death�? Produces the Dark Mark.

Muffliato

From the English word "muffle". Fills the ears of anyone near the spell caster with an unidentifiable buzzing. Harry got this spell from the Half-Blood Prince and usually used it to hold conversations in class without being detected.

Muggle-Repelling Charm

Used to keep Muggles away from things that wizards would prefer them not to see. No harm is done to the Muggles in question.

Nox

Latin for "darkness".

This spell counters "Lumos" by extinguishing the light "Lumos" creates.

Obliteration Charm

“Obliterate�?means to wipe out, leaving no trace.

This was used by Hermione to wipe out tracks in the snow. It may be able to remove other marks as well.

Obliviate

"Oblivio" is Latin for "forgetfulness".

The Memory Charm. This spell erases sections of the memory of the victim as chosen by the spell caster. It can wipe out the entire memory if the caster so chooses. The Memory Charm deprives victims of essential knowledge, giving them amnesia-like symptoms that may be incurable.

Occlumency

From the Latin "occlude," meaning "to close, shut up, close off."

This is the defense of the mind against external attack. Occlumency is the only way to protect one's mind from someone using Legilimency.

Orchideous

Named after the orchid, a type of flower. Creates flowers from the caster’s wand.

Oppugno

Latin for "to attack". Causes something to attack a target chosen by the spell caster. Hermiones used it to cause a small flock of conjured birds to attack Ron, and so it has been confirmed that it works on living creatures. It may work on objects as well.

Permanent Sticking

Charm used to attach one thing to another. Permanently.

Peskipiksi Pesternomi

Used by Lockhart to attempt to get rid of Cornish Pixies. It had no effect, probably due to the fact that he’d just made it up.

Petrificus Totalus

An adaptation of “totally petrify�? Renders the victim temporarily unable to move.

Placement Charm

Used to remotely position an object. Presumably similar to object moving spells such as Locomotor, except that the Placement Charm allows for accurate positioning of the target object.

Point Me

The Four-Point Spell. This spell causes the spell caster's wand to act as a compass. By holding the wand in open palm and saying the incantation ("Point Me"), the wand automatically points North.

Portus

"Porta" is Latin for "gate".

This spell is used to turn an object into a Portkey. Portkeys are used to transport people from one location to another almost instantly. A Portkey requires direct physical contact in order for it to work properly. The use of Portkeys is closely monitored by the Office of Magical Transportation.

Prior Incantato

From the Latin "priori prius," meaning "former, prior" and an adaptation of the English word "incantation."

The Reverse Spell Effect. When cast, this spell causes a wand to create an echo or ghostly image of the last spells it performed in reverse chronological order. A similar effect is known to occur when two wands sharing a magical core taken from the same animal (not just another animal from the same species) engage in battle. Brother wands cannot fight each other. Instead, the wands lock together, connected by magical energy. One of the wands will eventually force the other into a Reverse Spell Effect, which when it happens in this manner, is referred to as Priori Incantatem.

Protean Charm

A spell which links the appearance of several items. When one item is changed, the others change in the same way.

Protego

Latin for “protect�?

The Shield Charm. This creates a magical shield to deflect minor to moderate spells and jinxes cast by others. It is not advanced magic, as Harry managed to cast a very effective Shield Charm against Severus Snape whilst practicing Occlumency during his fifth year, but none-the-less a large number of adult witches and wizards are not proficient at it. The Weasley twins have taken advantage of this situation by marketing a range of Shield clothing which carries the charm and repels magic as though the wearer had cast it themselves.

Pus Hex

This spell was cast by Morfin Gaunt on Bob Ogden, when he went to visit the Gaunts as a representative of the Magical Law Enforcement Squad in connection with Morfin's attack on Tom Riddle Snr around 1925. It caused his nose to erupt into a cascade of pus, which could only be stopped through magical means.

Quietus

Adaptation of "quiet".

This spell negates the effects of the Sonorus Spell, making a magically magnified voice return to its normal state.

Reducio

Adaptation of “reduce�?

This spell causes an object shrink. It also negates the effects of the Engorgio Spell, returning any magically enlarged item back to its original size..

Reducto

This spell is used to blast solid object into pieces. It does not work on anything that is not solid.

Refilling Charm

Causes a container to refill with whatever liquid it was originally holding. Harry cast this on Slughorn's wine bottles when he was getting drunk with Hagrid after Aragog's funeral.

Relashio

This spell creates heat from the end of the wand. Normally sparks burst from the wand tip as a result of this spell, but if the wand is underwater, the spell produces jets of boiling water instead. When cast with enough vigour, this spell can be powerful to knock somebody off their feet if it is cast at them.

Rennervate

This may be a spell that revives an unconscious person. The incantation is, however, curiously close to the known spell Ennervate which has similar effects, and so when Harry attempted to cast this on Professor Dumbledore in the Horcrux Cave, he may simply have been mis-casting Ennervate in the heat of the moment.

Reparo

Latin for “to restore�? Mends the target object.

Repelling Spell

Repels an object.

Repelling Spells were used during early Quidditch matches to prevent the Snidget leaving the playing area.

Revelaspell

Invented by Scarpin, this is used to identify the ingredients of a potion.

Rictusempra

From the Latin "rideo risi risum," meaning "to laugh at, laugh."

The Tickling Charm. Causes uncontrollable laughter in the victim.

Riddikulus

Adaptation of "ridiculous".

Causes an item, creature or person to take on a humorous appearance of the spell caster's choosing. Particularly useful against Boggarts, who are destroyed by laughter.