Leg-Locker Curse

The Leg-Locker Curse (Locomotor Mortis) is a curse that causes the victim's legs to lock together. It is first used by Draco Malfoy in 1992 when he cast it on Neville Longbottom, with the excuse that he had been looking for someone to test it on. Hermione Granger and Ron Weasley prepared to use it during Harry Potter's second Quidditch match. The incantation is "Locomotor Mortis".

In the video-games, if Harry is caught out of bed, the prefects use this on him, and a number of points is taken from Gryffindor. Also this spell has a counter-curse.

Etymology
Locomotor, meaning mobilise, and "mortis", meaning death; taken together it means "death of motion".

Appearances

 * Harry Potter and the Philosopher's Stone
 * Harry Potter and the Philosopher's Stone (film)
 * Harry Potter and the Philosopher's Stone (video game)
 * Harry Potter and the Chamber of Secrets (video game)
 * Harry Potter and the Goblet of Fire (video game)
 * Harry Potter and the Half-Blood Prince

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