usurps is a form of:

Usurp



verbpast tense: usurped ; past participle: usurped ; present participle: usurping ;
1.
(TRANSITIVE) (To take or assume by force or without right) ដណ្ដើមយក (អំណាចរាជ្យ ។ល។)
Example: The crown prince tried to usurp his father's throne.
2.
(ច្បាប់) ដណ្តើមយក (​អំណាចរាជ្យ) ដោយខុសច្បាប់
ENGLISH MEANING
verbpast tense: usurped ; past participle: usurped ; present participle: usurping ;
1.
(TRANSITIVE) 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.
2.
(INTRANSITIVE) To commit forcible seizure of place, power, functions, or the like, without right; to commit unjust encroachments; to be, or act as, a usurper.