adj. & v.
adj. 1 (of a thing) injurious. 2 (of a disease) malignant. 3 malevolent.
v.tr. speak ill of; slander. maligner n. malignity n. (pl. -ies). malignly adv.
[ ME f. OF malin maligne, malignier f. LL malignare contrive maliciously f. L malignus f. malus bad: cf. BENIGN ]