malign (adj.) Look up malign at
early 14c., from Old French maligne "having an evil nature," from Latin malignus "wicked, bad-natured," from male "badly" (see mal-) + -gnus "born," from gignere "to bear, beget," from PIE root *gn- "to bear" (see genus).
malign (v.) Look up malign at
"to slander," mid-15c., from earlier more literal sense of "to plot, to contrive" (early 15c.), from Old French malignier "to plot, deceive, pervert," from Late Latin malignare "to do maliciously," from malignus (see malign (adj.)). Related: Maligned; maligning.