- Avada Kedavra: It means “Destroy it” in Latin.Comes from the common muggle spell “Abracadabra.”
- The most common curse. You-Know-Who likes to use it a lot.
- Accio: It means “I call” or “I summon” in Latin.
- Especially at B4, Harry used it at the Triwizard Tournament
- Expecto Patronum: It means“I expect a guardian.”
- Especially at B3. Harry learned it from Remus Lupin.
- Expelliarmus: The word Expellere means “to drive or force out” in Latin. The word Arma means “weapons” in Latin. The meaning of the spell is “to drive or force out the weapons.”
- Lumos: The Latin root “Lumen.” is for light. By adding the Latin suffix “os”, it means “have some light.”
- It can turn on the light.
- Nox: It is a word for night.
- It can turn off the light.
- Sectumsempra: The word Septum means “cut off”. Sempra isn’t a word， but it is similar to the word Semper, which is for “always”. (OH MY GOD!)
- Especially at B6. Severus Snape invented it.
