Pronunciation: Kah-vay uh-nim-i-kuhm

Use: To keep enemies away

Etymology: In Latin, Cave Inimicum is a phrase meaning 'beware of the enemy.'

Magic Moment: Hermione regularly used this spell to protect herself, Ron and Harry while on the hunt of Horcruxes in Deathly Hallows.

Notes: Those behind this spell's shield will not be seen, heard or even smelled if the spell is well-cast. It is unclear whether this spell is used or has a less effective shield in the Deathly Hallows films, as a Death Eater is able to smell Hermione's perfume through her protective spells.