purify
v.v. to remove dirty or harmful things from something so that it is clean and safe to use. You often use this when talking about cleaning water or air.
v. to remove contaminants or impurities from a substance; to make something physically or ceremonially clean. Transitive — requires a direct object.
We use a special filter to purify our drinking water.
The factory installed new systems to purify the air before releasing it into the atmosphere.
In many ancient cultures, specific rituals were performed to purify the temple after a period of conflict, ensuring the space was spiritually ready for worship once again.
From Middle English purifien, purifyen, from Old French purifier, purifiier, from Latin pūrificō, pūrificāre, from pūrus (“pure; clean”).
The verb is transitive and often takes the preposition 'of' or 'from' when describing the removed substance.