SPELLS DICTIONARY-D
Erases images. First seen in GoF when Amos Diggory gets rid of the echo of the Dark Mark from Harry's wand.
Makes the victim's teeth grow rapidly. Introduced in GoF when Draco Malfoy attacked Hermione outside of the Potions classroom. "Dens" is a Latin noun and means "tooth". "Augeo" is a Latin verb and means "I grow" (from the infinitive "augere" which means "to grow").
Severs the target. In GoF when Harry urgently wants to talk to Cedric Diggory he casts this spell to rip his bag, thus delaying him for class. Harry also tried to use it in Harry Potter and the Order of the Phoenix to save Ron from the brains in the Department of Mysteries, and also in Harry Potter and the Half-Blood Prince when he wanted to switch the cover of the Half-Blood Prince's copy of Advanced Potion-Making for a new one, in order to fool Professor Slughorn. Ron also uses this spell to trim the lace off of his dress robes in GoF.
In the Chamber of Secrets videogame, it is mentioned that Diffindo cuts (or severs) things that are organic (carbon-based) in material.
Causes the statue of the humpbacked witch hiding the secret passage to Honeydukes to open up. First seen in PoA. This may probably be not a spell, but a magical password like "Mimbulus Mimbletonia" (once a password for the Fat Lady) and "Acid Pops" (password for Dumbledore's office gargoyle in Harry Potter and the Half-Blood Prince). Perhaps it is formed from the English verb to descend, as this password allows people to descend into the secret passage through the statue, and as, if written "descendium" and not latinised, it could be pronounced in exactly the same way.
