quā̆drīni, ae, a, num. distrib. adj. [quattuor], four each, four (ante-class. and postAug.): ab uno uni, a tribus trini, a quattuor quadrini, Varr. L. L. 8, § 55 Müll.: si haberem quadrinas molas, Pompon. ap. Non. 483, 24: dies, Plin. 11, 36, 43, § 120: febris quadrini circuitūs, a quartan fever, id. 7, 50, 51, § 170: cardines, Arn. 6, 192: temporum vices, App. Dogm. Plat. 1, p. 7, 16.