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).
a succession of generals who ruled by usurpation
usually
usufruct
usurer
usurious
usurp
usurpation
usurper
usury
Utah
Ute
utensil
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