"Now, don't forget, it's Locomotor Mortis..."
"I know ...Don't nag."
-- Hermione Granger and Ron Weasley preparing to try the Leg-Locker Curse on Snape during Quidditch (PS13)
Locks together the legs of the victim, making him or her unable to walk.
References from the canon
- Draco cast this spell on Neville just for kicks; Neville then had to hop all the way back to Gryffindor Tower. (PS13)
- Hermione Granger performs an unknown counter-spell to release Neville from the curse.
- Later, Hermione and Ron discuss using the incantation Locomotor Mortis on Professor Snape as he was referee during a Quidditch Match, an idea they got from Draco's use on Neville (PS13).
"loco" L. from a place + "motionem" L. motion + "mortis" L. death