Boggart-Banishing Spell

Boggart-Banishing Spell
Incantation	Riddikulus (rih-Di-Kyu-luss)
Type	Charm
Effect	Gets rid of Boggarts

The Boggart-Banishing Spell (Riddikulus) is a charm that is used in defence against a Boggart. It causes the creature to assume a form that is humourous to the caster, thereby counteracting the Boggart's ability to terrorise. Boggarts are defeated by laughter, so forcing them to assume an amusing form is the first step to defeating them.

Professor Remus Lupin taught this to his third year Defence Against the Dark Arts class. Thanks to Lupin's teaching, Harry Potter was able to use this against a Boggart in the Triwizard Maze in 1995.

Etymology

"Riddikulus" is an adaptation of "ridiculous" as well as of ridiculum (Latin, "joke") and ridere (Latin, "to laugh").

Boggarts

Person	Fear	Riddikulus
Albus Dumbledore	The corpse of his sister Ariana Dumbledore	Unknown
Seamus Finnigan	A banshee	She lost her voice.
Hermione Granger	Professor McGonagall telling her that she failed her exams or failure in general.	Professor McGonagall giving her an award.
Neville Longbottom	Severus Snape	Snape was wearing Neville's grandmother's clothes.
Remus Lupin	Full moon	A cockroach
Harry Potter	A Dementor (or simply "fear", as stated by Lupin)	Smoke/uses Patronus Charm.
Parvati Patil	A mummy	It tripped over its bandages.
Tom Marvolo Riddle	His own dead body	Unknown
Dean Thomas	Disembodied living hand	Caught in a mousetrap
Molly Weasley	Dead family/friends	Unknown
Ron Weasley	Giant spider (or any spider for that matter)	No legs
Padma Patil	A giant cobra	A jack in a box
Minerva McGonagall Rubeus Hagrid Filius Flitwick Severus Snape Alastor Moody Rolanda Hooch Gilderoy Lockhart Poppy Pomfrey Irma Pince Pomona Sprout Sybill Trelawney Aurora Sinistra Septima Vector Katie Bell Seamus Finnigan Percy Weasley Fred Weasley George Weasley Oliver Wood Ginevra Weasley Colin Creevey Parvati Patil Angelina Johnson Lee Jordan Alicia Spinnet Draco Malfoy Vincent Crabbe Gregory Goyle Marcus Flint Millicent Bulstrode Padma Patil Cho Chang Penelope Clearwater Justin Finch-Fletchley Cedric Diggory Susan Bones Ernie Macmillan Hannah Abbott Arthur Weasley Unidentified registered Animagus Sirius Black Lucius Malfoy Tom Riddle Igor Karkaroff Dobby Amos Diggory Bartemius Crouch Sr. Doris Crockford Garrick Ollivander Tom Madam Malkin Madam Rosmerta Stan Shunpike Rita Skeeter Cornelius Fudge Ernie Prang Myron Wagtail Kirley Duke Donaghan Tremlett Orsino Thruston Shifty wizard Honeydukes Express lady Fleur Delacour Viktor Krum Gabrielle Delacour	Lord Voldemort	Voldemort gets a dummy.

Appearances

• Harry Potter and the Prisoner of Azkaban (First appearance)
• Harry Potter and the Prisoner of Azkaban (film)
• Harry Potter and the Prisoner of Azkaban (video game)
• Harry Potter and the Goblet of Fire
• Harry Potter and the Order of the Phoenix (First identified as Boggart-Banishing Spell)
• LEGO Harry Potter: Years 1-4