internĕcīnus or internĕcīvus, a, um, adj. [internecio],
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.