Gemino Curse

"Hermione screamed in pain, and Harry turned his wand on her in time to see a jeweled goblet tumbling from her grip. But as it fell, it split, became a shower of goblets, so that a second later, with a great clatter, the floor was covered in identical cups rolling in every direction, the original impossible to discern amongst them."

- Description of the Geminio spell used with the Flagrante spell

The Gemino curse is a curse that causes whatever object it is cast on to duplicate itself whenever touched (and hence it is used as a security measure for Gringotts treasure, see above).

Etymology
Latin gemino meaning "to double." This is appropriate, as the spell duplicates, or twins the target. Gemini is also the Latin name for the Twins, a constellation and third sign of the zodiac.

Behind the scenes

 * This curse appears to be related to the spell Geminio.

Appearances

 * Harry Potter and the Deathly Hallows
 * Harry Potter and the Deathly Hallows: Part 2

Maléfice de Gemino Geminio Gemino Kaksostuskirous