Type: Charm
Pronunciation: jeh-MIH-nee-oh
Description: Duplicates the target. When used to duplicate objects indefinitely on purpose, is known as the Gemino Curse.
Seen/Mentioned: Used by Hermione Granger on Salazar Slytherin's Locket to disguise her presence from Dolores Umbridge.
Etymology: The Latin word gemini means "twins".
