I.deadly, murderous, destructive (class.): “bellum,” Cic. Phil. 14, 3, 7; Liv. 9, 25 fin.; 22, 58, 3: “odia,” Just. 6, 6: internecini actio, for poisoning, Cod. Th. 9, 1, 14: internecini judicium, of one who has committed perjury, acc. to Isid. Orig. 5, 26. — Adv.: internĕcīnē , with utter destruction: “cuncta disperdere,” Amm. 27, 9, 6.
internĕcīnus or internĕcīvus , a, um, adj. internecio,