|effect=Repels enemies. If the enemies come to close to it, they get disintergrated (if used with Protego Maxima and Fianto Duri). However, without these spells used with it, it just repels enemies.
{{Quote|Protego Maxima. Fianto Duri. Repello Inimicum.|[[Filius Flitwick]] conjures up magical defences prior to the [[Battle of Hogwarts]].|Harry Potter and the Deathly Hallows: Part 2}}
{{Quote|Protego Maxima. Fianto Duri. Repello Inimicum.|[[Filius Flitwick]] conjures up magical defences prior to the [[Battle of Hogwarts]].|Harry Potter and the Deathly Hallows: Part 2}}
Repello Inimicum is a charm that, when cast in combination with Protego Maxima and Fianto Duri, conjures up an almost impregnable magical protection barrier around the place the caster is trying to protect.
Bodies crossing the boundaries of the barrier of this spell disintegrate on the spot, while spells cast at it (if not of enough power to break it) create large, resonating explosions. This spell's effect is most likely seen when the charging snatchers run at the shield, and disintegrate instantly.
History of use
Snatchers being disintegrated by the power of this spell combined with other protections.
The incantation is derived from the Latin "Repello", meaning "I drive away" and "inimicum", the accusative singular form of "inimīcus" meaning "foe" or "enemy". Altogether the incantation means "I push back the enemy".
Behind the scenes
The concrete effect of this spell is unknown, though given its etymology it appears it was devised to repel enemies. And, in Harry Potter and the Deathly Hallows Part 2, Dementors dodged the spell, but the only spell that repels Dementors is the Patronus Charm. However it is still possible that the Dementors moved away because they were not fond of the spell (which is different from 'repelling').
In LEGO Harry Potter: Years 5-7, the protective enchantments around the ground are summoned by Filius Flitwick, Horace Slughorn and Minerva McGonagall.
