動詞 dispel:

1. force to go away; used both with concrete and metaphoric meanings
   同義詞：chase away, drive out, turn back, drive away, drive off, run off
2. to cause to separate and go in different directions
   同義詞：disperse, dissipate, break up, scatter

1. The wind soon dispelled the fog.
   風很快就把霧吹散了。
2. How can we dispel their doubt?
   我們怎么才能驅散他們的疑慮呢？
3. The company is trying to dispel rumour about a take-over.
   公司力圖澄清有關接管的流言。

dis.pel

v.tr.（及物動詞）
dis.pelled,dis.pel.ling,dis.pels
To rid one`s mind of:
消除：
例句：
managed to dispel my doubts.
極力消除我的懷疑

To drive away or off by or as if by scattering.See Synonyms at scatter
驅散：驅散或好象散開參見 scatter

來源：
Middle English dispellen
中古英語 dispellen
from Latin dispellere
源自 拉丁語 dispellere
dis- [apart] * see dis-
dis- [分開，分離] *參見 dis-
pellere [to drive] * see pel- 5
pellere [驅使，驅散] *參見 pel- 5