a. Obs.–1 [f. L. vīpere-us (hence It. vipereo), f. vīpera VIPER: see -EOUS. Cf. VIPERIOUS a.] Viperous, venomous. In the first quot. after Ovid, Metam., IV. 490; in the second translating Virgil, Æneid, VII. 349–51.
c. 1620. Robinson, Mary Magd., 547. A dreary hagge of Acheron … in the palaces of Pleasure stood, Shakinge ye frie of her vipereous brood. Ibid., 565. And one vpon ye wretched mayd shee slunge, That … glided on her brest with gentle hast, And there vipereous cogitations plac’t.
