2. To flood; to overflow; to cover with water.
Proud Pactolus floats the fruitful lands.
Dryden. 3. (Plastering) To pass over and level the surface of with a float while the plastering is kept wet.
4. To support and sustain the credit of, as a commercial scheme or a joint-stock company, so as to
enable it to go into, or continue in, operation.