Verb
freeze over (third-person singular simple present freezes over, present participle freezing over, simple past froze over, past participle frozen over)
(intransitive) To freeze on the surface.
The lake in the park freezes over every winter.
Hell will freeze over before any other flags fly in Gibraltar that are not our flags. Red, white and blue. Red, white and proud. Red, white and free! Fabian Picardo
So LSM stays in. No ifs, buts, maybes or anything else. When I see the security people making sane arguments and agreeing on something, that will change. Quite frankly, I expect hell to freeze over before that happens, and pigs will be nesting in trees. But hey, I can hope. Linus Torvalds
All rivers and freshwater lakes freeze over in the winter, and smaller streams commonly freeze to the bottom. Source: Internet
All the rivers freeze over and locals make river crossings during this period because their high levels from glacier melt in summer inhibits crossing. Source: Internet
Because it's not as deep as the other lakes, Erie warms rapidly in the spring and summer and is frequently the only Great Lake to freeze over in winter. Source: Internet
All Ukraine's rivers freeze over in winter (usually December through March), limiting navigation. Source: Internet