Type: Charm
Pronunciation: ah-REST-oh mo-MEN-tum
Description: Used to decrease the velocity of a moving target it should be noted that it can be used on multiple targets, as well as on the caster him/herself.
Seen/Mentioned: Used by Dumbledore to save one of his students from a fall in 1993. Hermione Granger used it, too little effect, in 1998 to cushion an otherwise deadly fall.
Etymology: Likely the combination of the Anglo-French arester, Meaning, "To bring to a stop" and Latin momentum, meaning, "the force or strength gained whilst moving"; the literal translation hence is "Bring the force or strength gained whilst moving to a stop".