I . v. a.
1.
Darken, make black.
2.
Sully, deface, soil, defile, darken, stain.
3.
Vilify, defame, slander, calumniate, asperse, traduce, malign, besmirch, revile, rail at, sneer at, run down, speak ill of. See abuse .
II . v. n.
Grow black, darken, gloom, lower, threaten.