Lewis Short
ūsurpātĭo (noun F) : id.
* A taking into use, a making use, using, use of a thing (cf. usus).
* In gen.: usurpatio et renovatio doctrinae,Cic. Brut. 71, 250: civitatis,Cic. Verr. 2, 5, 64, § 166: vocis,Liv. 27, 19, 5: superba nominis,Plin. 33, 2, 7, § 31: vetustatis,Cic. Agr. 2, 12, 31: itineris insoliti,the undertaking of a journey so uncommon,Liv. 41, 23, 14: bonae mentis,enjoyment, possession,Val. Max. 4, 4, 1.
* In partic., in jurid. lang.
* A seizing or using unlawfully, usurpation: qui sanctitatem baptismatis illicitā usurpatione geminaverit,Cod. Just. 1, 6, 1: per vim et usurpationem vindicare ac tenere aliquid,ib. 1, 4, 6.
* A using by another party, whereby a prescription or usucaption is interrupted: usurpatio est usucapionis interruptio,Dig. 41, 3, 2.
Charlton T. Lewis, Charles Short, A Latin Dictionary