Colunsio is an incantation used to cast a lightning-like spell.
Known Uses[]
It was first used by Voldemort during his duel with Dumbledore in the Battle of the Department of Mysteries. It was used a second time by Voldemort to test the Elder Wand.
Origin[]
Colunsio is likley derived from the latin offensio (meaning shock) and the latin columna. (meaning beam or column of light) It literally means "shock beam."