calumniator

Hamilton may have been less a master of the shorter form but once denounced a clerk in the Treasury Department as “a dispicable calumniator”.

"Is there but one slanderer in the world, dear father?" replied the fair girl, raising her eyes almost reproachfully to her parent's countenance; "and should we even doubt the conduct of one whom for many a long year we have seen walk in truth and honour, because some nameless calumniator breathes a tale against him?"

The liar, who, with a smooth face, wrongs his friend in the most tender point, is still a man of honour with the world: the traitor, who betrays his country or his king, so that it be for passion, and not gold, is still a man of honour, and will cut your throat if you deny it: the calumniator, who blasts another's reputation with a sneer, is still a man of honour if he's brave.

In a word, I might have shown the contemptible scribblers that I knew how to temper duty with discretion, as I shall know how, when the occasion offers, to make the punishment of a calumniator a terror to his colleagues.

Especially when the calumniator is one that deviseth mischief, who loves evil more than good, to whom truth is too tame to be cared for, who delights in falsehood because it is more piquant, more exciting.