quā̆drŭplĭco, āvi, ātum, 1, v. a. [quadruplex],
to multiply by four , make fourfold , quadruplicate : rem suam, one’s property , Plaut. Stich. 3, 1, 4: numerum, Dig. 38, 10, 10.— Hence, adv.: quădrŭplĭcā-tō , four times as much , quadruply (postAug.), Plin. 2, 17, 14, § 76: emptis vineis, id. 14, 4, 5, § 51.