argumentum

It was a masterful bit of hypocritical eloquence, of argumentum ad hominem; but it was made to simple and illiterate hearers.

It was not to this, however, that he directed his objection: the argumentum ad hominem came more easily to him.

But it was the Argumentum ad hominem; and if my uncle Toby was not very expert at it, you may think, he might not care to use it.

In a case like this the argumentum ad hominem, though a perfectly fair one, is a perfectly useless one.

It is incomprehensible; or, as St. Paul says, the argumentum non apparentium.