Erecto
Incantation	Erecto (ee-RECK-toh)
Type	Charm
Hand Movement	Point wand at target
Light	None
Effect	Erects a structure

[Source]

Erecto is a spell used to set up a stucture of sorts. Hermione Granger, Ron Weasley and Harry Potter used this spell to set up a tent for themselves while hunting Horcruxes in 1997 and 1998.

Behind the scenes

• Erecting a tent is the only known use in the series, but it could presumably be used to erect any structure given that the required materials were present.

Etymology

Erectum is past participle of erigere, a Latin verb meaning "to erect".

Appearances

• Harry Potter and the Deathly Hallows (First appearance)
• Harry Potter and the Deathly Hallows: Part 1