I.gen. plur. only septenūm, Cic. Verr. 2, 2, 49, § 122; Col. 12, 28, 1), num. distrib. adj. [septem].
I. Seven each: “a summo septenis cyathis committe hos ludos,” Plaut. Pers. 5, 1, 19: “duo fasces, candelis involuti, septenos habuere libros,” Liv. 40, 29; Col. 1, 3, 10; Plin. 7, 25, 25, § 91 (dub.); 17, 10, 11, § 64.—Gen.: “amphorarum septenum,” Col. 12, 28, 1: “pueri annorum senum septenumque denum,” Cic. Verr. 2, 2, 49, § 122.—
II. Transf., for septem, seven: “dispar septenis fistula cannis,” Ov. M. 2, 682: “fila lyrae,” id. F. 5, 105: quā septenas temperat unda vias (the seven mouths of the Nile), Prop. 3 (4), 22, 16; cf. “in the foll.: homo crescit in longitudinem ad annos usque ter septenos,” Plin. 11, 37, 87, § 216: “bis septenos greges,” Sen. Herc. Oet. 1850.—Sing., sevenfold (poet. and in postAug. prose): “gurgite septeno rapidus mare submovet amnis (Nilus),” Luc. 8, 445: “gurges Nili,” Claud. in Rufin. 1, 185: Ister (the seven-mouthed Danube), Stat. S. 5, 2, 136 (cf. septemplex): “non removeri septeno circuitu,” Plin. 28, 16, 66, § 228.