Damnatus
A St. Louis newspaper, relieved to find that it can say “tinker’s dam” without being guilty of profanity, shows its gratitude by proving the same innocence for the “continental dam.” At the close of the Revolutionary War, it says, the government called in all the continental money. With it were found a large number of counterfeits, on each of which, as received, was stamped the word “Dam,” a contraction of the Latin damnatus (condemned). Hence the force of the expression, “not worth a continental dam,” for if a genuine continental note was worth but little, a continental “dam,” or counterfeit note, must have been utterly worthless.