Scour, v. i. 1. To clean anything by rubbing. Shak.
2. To cleanse anything.
Warm water is softer than cold, for it scoureth better. Bacon.
3. To be purged freely; to have a diarrhœa.
4. To run swiftly; to rove or range in pursuit or search of something; to scamper.
So four fierce coursers, starting to the race,
Scour through the plain, and lengthen every pace. Dryden.