Evanesco is a Vanishing Spell.
From the Story[]
Harry Potter and the Order of the Phoenix[]
Discovered in chapter 13, Detention with Dolores[]
| “ | Vanishing Spells such as Evanesco are among the most difficult magic students are tested on in their O.W.L. exams. Professor McGonagall has the fifth-year students practise their Vanishing Spells on snails during their lesson. | ” |