ban·ish 
(bănĭsh)
(bănĭsh)tr.v. ban·ished, ban·ish·ing, ban·ish·es
1. To force to leave a country or place by official decree; exile: The spy was found guilty of treason and banished from the country.
2. To drive away; expel: We banished all our doubts and fears.
[Middle English banishen, from Old French banir, baniss-, of Germanic origin; see bhā-2 in the Appendix of Indo-European roots.]
banish·er n.
banish·ment n.