late 14c., from Old French usurpacion, from Latin usurpationem (nominative usurpatio) "a taking into use," noun of action from past participle stem of usurpare (see usurp).
Entries linking to usurpation
usurp v.
early 14c., from Old French usurper "to (wrongfully) appropriate" (14c.), from Latin usurpare "make use of, seize for use," in later Latin "to assume unlawfully, trespass on," from usus "a use" (see use (v.)) + rapere "to seize" (see rapid (adj.)). Related: Usurped; usurping.