nostrum-monger

Mr. Ferret would not have stood so long in his rostrum unmolested, had not he cunningly chosen his station immediately without the jurisdiction of the town, whose magistrates therefore could not take cognisance of his conduct; but application was made to the constable of the other parish, while our nostrum-monger proceeded in his speech, the conclusion of which produced such an effect upon his hearers, that his whole cargo was immediately exhausted.

The Life and Adventures of Sir Launcelot Greaves 2004

He is appreciated alike in the closet and on the stage, quoted by saints and sages, in the pulpit and the senate, and your nostrum-monger advertises his wares with a quotation from his pages; does he then require interpreting who is his own interpreter?

Notes and Queries, Number 195, July 23, 1853 A Medium of Inter-communication for Literary Men, Artists, Antiquaries, Genealogists, etc Various 1852

What, my dear, will you submit to be cured by a quack nostrum-monger?

St. Patrick's day, or, the scheming lieutenant : a farce in one act Richard Brinsley Sheridan 1783

Mr. Ferret would not have stood so long in his rostrum unmolested, had not he cunningly chosen his station immediately without the jurisdiction of the town, whose magistrates therefore could not take cognisance of his conduct; but application was made to the constable of the other parish, while our nostrum-monger proceeded in his speech, the conclusion of which produced such an effect upon his hearers, that his whole cargo was immediately exhausted.

The Adventures of Sir Launcelot Greaves Tobias George Smollett 1746