At least some content in this article is derived from information featured in Fantastic Beasts: The Crimes of Grindelwald. As such, spoilers will be present within the article.
The incantation Avenseguim is likely derived from the portmanteau of avens, a Latin adjective for "eager" or "craving", and seguir, the Spanish and Portuguese verb meaning "to follow" (or alternatively from the Catalan seguim, meaning "we follow"). Taken together, Avenseguim can be interpreted as "to eagerly follow", which aptly characterises the behaviour of a tracking device.
Behind the scenes
- The spelling for the incantation is incorrectly given as "Avensegium" in the companion book, Fantastic Beasts: The Crimes of Grindelwald: Magical Movie Handbook.
- Fantastic Beasts: The Crimes of Grindelwald
- Fantastic Beasts: The Crimes of Grindelwald - The Original Screenplay