usurp
C2Noun/US /jˌuːsˈɝp/ yo͞os-ƏRP; UK /jˌuːsˈɝp/ yo͞os-ƏRP/
To seize, and hold in possession, by force, or without right; as, to usurp a throne; to usurp the prerogatives of the crown; to usurp power; to usurp the right of a patron is to oust or dispossess him.
