0 present participle of usurp
1 to take control of a position of power, especially without having the right to:
Local control is being usurped by central government.
The size of his plantation increased from 200 to 3,000 acres, in particular by usurping the property of local people.
The strong have a duty to display sympathy for the weak instead of stealing their land and usurping their freedom.
Adding insult to injury: usurping patients' prerogatives.
The suggestion envisaged a commodity commission purchasing meat abroad and selling it in this country, thus usurping what the trade does infinitely better here.
I believe that we are in fact usurping the proper functions of the courts of the land.
They are usurping the natural breast-feeding process to improve sales of their products.
How could such a system avoid usurping ministerial responsibilities, while ensuring that people's complaints are not overlooked?
Nobody can say what is "usurping the functions of the police," and nobody can say what is a procession.