What does the word blacken mean?

Usage examples for blacken

  1. That the attempt to blacken our league with the reproach of treason, that the warlike preparations of the Duke of Savoy and of other princes, which, according to common report, are directed against ourselves; the negotiations of the king with the French court to obtain a passage through that kingdom for a Spanish army, which is destined, it is said, for the Netherlands- what wonder if these and similar occurrences should have stimulated us to think in time of the means of self- defence, and to strengthen ourselves by an alliance with our friends beyond the frontier? – The Revolt of The Netherlands, Complete by Frederich Schiller
  2. Go along and blacken 'em, this minute, and send Felix to me. – The Parent's Assistant by Maria Edgeworth
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