(adj.adv.) : pernĭcĭōsus, a, um, adj.pernicies
* Destructive, ruinous, baleful, pernicious (syn.: exitialis, capitalis): perniciosae leges,Caes. B. C. 1, 7: scripta auctori perniciosa suo,Ov. Tr. 5, 1, 68.—Comp.: morbi animi perniciosiores sunt, quam corporis,Cic. Tusc. 3, 3, 5; Sall. J. 46, 8.—Sup.: perniciosissimum fore,Nep. Ages. 6, 2; Inscr. Grut. 113, 2.—As subst.: pernĭcĭōsa, ōrum, n., baneful things: petuntur,Juv. 10, 54; cf.: inter perniciosissima numerare,Vell. 2, 7, 5.—Hence, adv.: pernĭcĭōsē, destructively, ruinously, perniciously: multa perniciose, multa pestifere sciscuntur in populis,Cic. Leg. 2, 5, 13: luxuriat vitis,Plin. 17, 22, 35, § 178.—Comp., Cic. Leg. 3, 14, 32.—Sup., Aug. Ep. 39.

s. TLL