See also: break-up (def. 2)
- 1701  (1929)  I was desirous to winter at Slude river but . . . none is acquainted wth ye breaking up so it is deferr'd till next year. . . .
- 1925  ... when the spring "breaking-up" really began, the country became a series of islands.
2 n. the spring thawing of the ice on rivers and lakes, especially the point in time when the ice breaks into pieces that are flushed away by the current.
See also: break-up (def. 1)
- 1743  (1949)  I[']ll be in at the Breaking up of the Rivers.
- 1946  (1947)  . . . the breaking up . . . comes about this time every year.