Effingo

Effingo is the incantation to the Duplication Spell which duplicates anything the wand is pointing at. This spell can duplicate anyone or anything; the spell releases a silver light that hits the object leading its duplication.

History
This spell was created by Kevgretor Urthadar in the late 1600s when he was being violently attacked. He hid himself, cast this spell which created his duplicate that he used as a decoy. This spell saved his life as the chaser went after the duplicate.

Extra Details

 * The duplicate neither feels pain or emotion.
 * This spell is taught to fifth years at Hogwarts.

Latin Origin

 * Effingo - Duplicate.