perniciōsus adj. with comp. and sup. pernicies, destructive, ruinous, baleful, pernicious: lubido, S.: flamma: leges, Cs.: scripta auctori perniciosa suo, O.: morbi perniciosiores: Obsequium ventris mihi perniciosius est, H.: perniciosissimum fore, si, etc., N.

—Plur n. as subst, baneful things: perniciosa loquebatur, talked injuriously: petuntur, Iu.