#1
usurp v. [
assume, seize, take over, arrogate] seize and take control without authority and possibly with force; take as one's right or possession; "He assumed to himself the right to fill all positions in the town"; "he usurped my rights"; "She seized control of the throne after her husband died"
. wn #2
usurp v. take the place of; "gloom had usurped mirth at the party after the news of the terrorist act broke"
. wn