Scourgify Cleans an item.
Sectumsempra
From the Latin "sectio", which means "to cut", and "semper", which means "always". Causes deep wounds to be immediately cut into the victim, as though they were being slashed with an invisible sword. Harry used it against Malfoy, not knowing what it did and was shocked at its effect. He used it again against the Inferi in the Horcrux cave, with little effect. This spell was invented by Severus Snape whilst he was a student at Hogwarts.
Serpensortia
From “serpent�? a snake.
Creates a snake from the caster’s wand.
Severing Charm
Cuts one thing from another. This is usually intended for use on items, but does work on living matter as well, as it is known that Crups living in Muggle-inhabited neighbourhoods are required to have their forked tails removed with a Severing Charm. If used on humans, this charm would provide a handy means for Dark Wizards to kill people, creating a powerful alternative to Avada Kedavra and has the advantage of not being Unforgiveable.
Shock Spell
A medicinal spell which treats the patient for shock.
A witch who wrote in to The Quibber following Harry's interview suggested he try a course of Shock Spells in order to restore his sanity.
Side-Along-Apparition
"Appareo" is Latin for "appear" or "to become visible". When Apparating, it is possible for a qualified wizard to Apparate someone else as part of the process in addition to themselves. This technique is known as Side-Along-Apparition. The passenger being carried must grip tightly on to the Apparator in order to ensure that they are transported correctly.
Silencio
From “silent�?
This charm forces any person, creature, or object it is cast upon to fall silent, unable to make any audible noise.
Slug Curse
Causes the victim to burp slugs.
Sonorus
Latin for “loud�?
Projects the voice of the spell caster, making it very loud.
Spark Charm
Causes sparks to be emitted from the end of the caster’s wand. This may be the same spell as Relashio.
Specialis Revelio
"Specialis" is Latin for "special", and "revelo" is Latin for "to unveil". Causes an item to reveal anything that has been hidden by magical means. Hermione used it to make sure there was nothing untoward hidden in the Half-Blood Prince's copy of Advanced Potion-Making.
Stealth Sensoring Spell
Rather like a Secrecy Sensor, this spell detects illicit behaviour and alerts the caster. Professor Umbridge had cast this spell on her office door when Harry broke in to contact Sirius using her fireplace.
Stinging Hex
Produces a painful red weal on the victim’s body.
Stretching Jinx
Causes something to stretch. Molly Weasley thought Harry and Ron looked like they'd had Stretching Jinxes placed on them due to their rapid increase in height. Therefore the Jinx may work on organic matter as well as objects, but Molly may have just been flippant.
Stupefy
"Stupefy" means "to dull the senses".
It may also derive from the Latin "stupefactus," meaning "stunned." This spell produces a bolt of red light and stuns whoever it is cast upon, knocking the victim unconscious. A single Stunning Spell is not strong enough to do any lasting damage to a victim, but multiple stunners cast on one target can cause serious harm, as was done to Professor McGonagall in Harry Potter and the Order of the Phoenix. The spell "Ennervate" can undo the effects of the Stunning Spell and bring victims back to consciousness..
Switching Spells
These are a class of spells which change items from one thing into another. This is the major branch of Transfiguration. It is not clear whether there are a number of related spells for different types of switching or whether it is all done with a single spell, as no details of this are given.
Tarantallegra
The Tarantella is a fast Italian dance. Causes the victim’s legs to dance uncontrollably.
Tergeo
Latin for "to wipe, scour or clean". Spell used to clean something. It may be restricted to cleaning liquids; otherwise it would be no different from Scourgify. Hermione used it to clean the blood from Harry's face after his nose had been broken.
Thief's Curse Effect unknown. Dumbledore ordered that every copy of Quidditch Through the Ages sold to Muggles was enchanted with this curse to prevent them reading it without buying it.
Toenail Growth
Charm Causes the victim's toenails to grow alarmingly fast.
Tongue-Tying
Curse Effect unknown, but probably something to do with tongues.
Covered by Professor Vindictus Viridian in his book on curses and counter-curses.
Transforming Spells
A close relative of Switching Spells, this class of charm is used to change living creatures (as opposed to items) from one thing into another. This is the other major branch of Transfiguration. It is not clear whether there are a number of related spells for different types of transformation.
Transmogrifian Torture
Lockhart thought that this had been used to kill Mrs Norris when she was found frozen rigid in 1992.
It hadn't of course - perhaps because no such curse actually exists. IN fact, Mrs Norris was not dead at all and had been petrified by a basilisk.
Trip Jinx
Causes the victim to trip over.
Unbreakable Charm
Makes an item unbreakable.
Unbreakable Vow
This spell creates a magical treaty between two people. The two participating parties must link their right hands in order for the spell to be cast. A third person, known as the Bonder, is also required to witness the pact and magically seal it. The tip of the Bonder's wand must be placed on the linked hands, and the terms of the treaty are made. As this is done, flame issues from the wand and winds itself around the hands of the participants. At this point the Unbreakable Vow is made, and if the terms of it are broken by one of the participants, they will die. It is likely that no other spell can counteract the effects of the Vow once it is made.
Waddiwasi
Causes an item to fly at high speed where the spell caster wants it to. This is likely to be a single variant of a general XXXXX-wasi spell which can be cast on any item. The XXXXX in this case was chewing gum, which is the “waddi�?part.
Wandless Magic
Traditionally, magic requires a wand to be used, although this is not always the case. There are frequent examples of wandless magic throughout the books, and so it seems reasonable to assume that whilst the wand is a useful (and often vital) channel for magical power, gifted wizards can successfully cast spells without it when necessary. The more advanced the magic, the more difficult it is to cast without a wand, however, and there have been no examples of advanced spells being cast wandlessly. Severus Snape used a wandless Accio to summon the ropes that he'd just used to tie up Remus Lupin to his hand in the Shrieking Shack in Prisoner of Azkaban, whilst Harry's early life was littered with wandless magic such as his removal of the glass in the reptile house at the zoo. In addition to this, house-elves never use a wand for their magic.
Wingardium Leviosa
Taken in part from the Latin root "levo," meaning "to raise, lift up."
This spell causes an object to levitate. Once levitating, the object can be manipulated in midair by the spell caster.
Wound Healing Spell
Heals wounds and causes the skin to knit back together. Professor Snape used this charm on Draco Malfoy after Harry had attacked him using Sectumsempra.