to render worse, to cause to degenerate, to debase, to corrupt, to deteriorate, to alter; to weaken, to abase, to undo, to defeat, to rout; to insult, to defame, to dishonour; to despise.
va.
empirer, avilir, faire dégénérer, dégrader, abâtardir, altérer, gâter, détériorer; défaire, mettre en déroute, affaiblir; insulter, diffamer, confondre;