-: Currently on an indefinite hiatus :-

Seen/mentioned: First seen in Chamber of Secrets, when Snape disarms Gilderoy Lockhart in the Duelling Club; from then on it is commonly used throughout the rest of the series. Draco uses it to disarm Dumbledore and Harry uses the spell to not only disarm Gregory Goyle in the Room of Requirement, but also to reflect Voldemort’s killing curse during the final battle.

Suggested etymology: During an audience interview at the Edinburgh Book Festival (15 April 2004) Rowling said: “Does anyone know where avada kedavra came from? It is an ancient spell in Aramaic, and it is the original of abracadabra, which means ‘let the thing be destroyed.’ Originally, it was used to cure illness and the ‘thing’ was the illness, but I decided to make it the ‘thing’ as in the person standing in front of me. I take a lot of liberties with things like that. I twist them round and make them mine.” Rowling’s use of this name may have been influenced by Latin cadaver = “corpse”.

Seen/mentioned: Used by Harry in Goblet of Fire on Draco, but was deflected onto Goyle instead. Also used later in the book when Draco tried to harass Harry on the Hogwarts Express and was hit with a barrage of curses, including the Furnuculus Curse (which was cast by Harry).

Seen/mentioned: Used only once in the series, by Lupin in Prisoner of Azkaban to expel a wad of chewing gum from the key hole Peeves put it in, launching it up Peeves’ nose.

-- Headmistress

Seen/mentioned: First seen in Prisoner of Azkaban, when taught by Lupin. Then seen in Goblet of Fire on a boggart that was in the maze in the Third Task. Finally seen in Order of the Phoenix, when Mrs Weasley tries to cast Riddikulus on a Boggart in Grimmauld Place Notes: The effect depends on what the caster is thinking. Neville concentrates on his grandmother’s dress, causing a Boggart in the form of Snape to appear in it.

Seen/mentioned: First used in Philosopher’s Stone by Hermione, who was trying to prevent Neville from stopping her, Ron, and Harry from leaving the common room to hunt for the Philosopher’s Stone It is then used throughout the rest of the series, especially during the Battle of the Department of Mysteries in Order of the Phoenix. Seen in Half-Blood Prince twice: in the beginning, Draco uses the spell against Harry on the train, and later when Dumbledore casts the spell to make Harry freeze so he does not give himself away in the Astronomy Tower. The spell was broken when Dumbledore was killed. Notes: The eyes of the target remain mobile, as seen in the Philosopher’s Stone, and in the Deathly Hallows.

Seen/mentioned: A “Growth Charm” with the same effect is briefly mentioned. Hagrid is suspected of having performed the charm on his pumpkins in Chamber of Secrets. Also seen in Goblet of Fire when Barty Crouch Jr, impersonating Moody, casts it on a spider to enhance a demonstration of the effects of the Cruciatus Curse.

What specifically do you mean? A bit of creativity and some knowledge of HTML certainly helped out a bit, I should add. (: