Webster's Revised Unabridged Dictionary · 1913

Dispel

Dispel , transitive verb

[Latin dispellere; dis- + pellere to push, drive. See Pulse a beating.]

To drive away by scattering, or so to cause to vanish; to clear away; to banish; to dissipate; as, to dispel a cloud, vapors, cares, doubts, illusions.
[Satan] gently raised their fainting courage, and dispelled their fears. — Milton
I saw myself the lambent easy light Gild the brown horror, and dispel the night. — Dryden