DCHP-1 Online
overflow ((v.)) Esp. North 
v. of water in rivers and lakes, rise under pressure of expansion through cracks and fissures to cover the ice on the surface.
- 1901 (1964) Day and the other returned at once lest the river should overflow and render the ice trail impassable.
- 1940 The colder it is, the more the river freezes to the bottom, and consequently the more it overflows.
- 1901 (1964) Day and the other returned at once lest the river should overflow and render the ice trail impassable.