Dispel (verb)

1. To drive away, scatter, or cause to disperse.
2. To eliminate or put an end to something.

Origin:

From the middle english dispelle, from the old french despeller, from the latin dispellere, from dis- + pellere to drive away.

Examples:

1. The warm sun finally dispelled the morning fog.
2. The teacher"s explanation dispelled the students" confusion.
3. He tried to dispel the rumors by telling the truth.
4. The medicine was able to dispel the headache.
5. The police were called to dispel the fight that broke out.