Incantations
Spells

Impervius

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The Harry Potter Canon
Impervius

Makes something waterproof or water repellent.

References from the canon

  • Hermione used this spell to make Harry's glasses repel water during a rainy Quidditch match (PA9).
  • The entire Gryffindor team used it on their faces to try to practice in a driving rain, but they still gave up after an hour (OP18).
  • Recommended by Hermione to Ron as a way of protecting Yaxley's belongings from the rain in his office until it can be stopped (DH12).
  • Hermione used this in an attempt to protect herself, Ron, Bogrod, and Griphook from the burning, multiplying treasure in the vault (DH26).

Commentary

Etymology

"im-" prefix from L. not + "pervius" L. letting things through

Pensieve (Comments)

Tags: burning rain water