Type: Spell
Pronunciation: ah-RAHN-ee-a EKS-su-may
Description: This spell is used to blast away Acromantulas and, presumably, all other arachnids.
Seen/Mentioned: Harry uses this spell in The Forbidden Forest to defend him and Ron Weasley from some spiders that are attacking them. He learned the spell form a diary, who attempted to use it in a memory.
Etymology: From the Latin aranea, meaning "spider", and exuo meaning "I lay aside.
