Description: Creates a thin, shimmering line that can only be passed by people of a set age. It is unknown whether the ageing potion causes this alongside the age line spell.Seen/mentioned: First seen in Goblet of Fire, when Fleur put the fire out on her skirt "with a bit of water from her wand." First named in Half-Blood Prince, when Harry is being taught how to perform this specific charm in Professor Flitwick's class.
Magic spells are used by many of the characters to achieve useful effects without the benefit of modern technology.
In the books and the associated film series, the names of the majority of these spells or the incantations used to effect them are derived from the classical languages, particularly Latin.
Spells are listed here by their incantations (when known), with their vernacular names in parentheses.
Some spells have no known incantation – the only reference in the text is by an informal name, either because in its only appearance in the relevant book it was cast nonverbally, or because it was never depicted in the books, only mentioned.
The majority of spells cast in duels between adult characters in all seven books appear nonverbally; only their effects can identify such spells.
Seen/mentioned: First mentioned in Harry Potter and the Goblet of Fire, when it was briefly used by Molly Weasley on the Weasley twins to confiscate their Weasleys' Wizard Wheezes' products from their pockets, before they left for the Quidditch World Cup.Hermione was also mentioned trying to learn this charm during her ride aboard the Hogwarts Express.Later on in the same book, Harry summons his broom to complete the First Task of the Triwizard Tournament.Near the end of the book, Harry uses it to summon the Triwizard Cup after he encounters Voldemort.When Ron goes mad in the department of mysteries in Order of the Phoenix, he attempts to use it to summon a brain.Harry uses this spell to summon Hagrid in Harry Potter and the Deathly Hallows but fails. As demonstrated by Fred and George Weasley, attempting to use an aging potion and stepping over the line appears to work, but moments later they are seen with grey hair and beards.