from
Bouvier's Law Dictionary, Revised 6th Ed (1856)
PUBLIC DEBT. That which is due or owing by the government.
2. The constitution of the United States provides, art. 6, s. 1, that
"all debts contracted or engagements entered into, before the adoption of
this constitution, shall be as valid against the United States under this
constitution, as under the confederation." It has invariably been the policy
since the Revolution, to do justice to the creditors of the government. The
public debt has sometimes been swelled to a large amount, and at other times
it has been reduced to almost nothing.