oust
Concise Oxford English Dictionary © 2008 Oxford University Press:
oust /aʊst/
▶verb
- 1 drive out or expel from a position or place.
- 2 Law deprive of or exclude from possession of something.
■ take away (a court's jurisdiction) in a matter.
– origin ME: from Anglo-Norman Fr. ouster ‘take away’, from L. obstare ‘oppose, hinder’.
'oust' also found in these Oxford entries:

