A handy (even life-saving) spell for removing an object from an enemy's grasp
Expelliarmus fact file
To remove an object (often a wand) from the recipient’s hand
James shouted, ‘Expelliarmus!’
Snape’s wand flew twelve feet into the air and fell with a little thud in the grass behind him.
Neville overturned a desk in his anxiety to help; and pointing his wand wildly at the struggling pair, he cried:
Harry Potter and the Order of the Phoenix
by J.K. Rowling
Both Harry’s and the Death Eater’s wands flew out of their hands and soared back towards the entrance to the Hall.