- The act of usurping, or of seizing and enjoying; an
authorized, arbitrary assumption and exercise of power, especially an
infringing on the rights of others; specifically, the illegal seizure
of sovereign power; -- commonly used with of, also used with on or
upon; as, the usurpation of a throne; the usurpation of the supreme
power. - Use; usage; custom.
Meaning of 'usurpation' (Princeton's WordNet)
1 . usurpation
[ n]
Meaning (1): - wrongfully seizing and holding (an office or powers) by force (especially the seizure of a throne or supreme authority)