1665  (1885)  We cutt the ice w ' h hattchetts & we found places where [it] was rotten, so we hazarded ourselves often to sinke downe to our necks.
1795  (1911)  At Jacques Cartier the ice was so rotten I was obliged to go a league higher to cross the river with safety. . . .
1849  Thence we proceeded to Montreal, which we reached after four days and three nights of most unpleasant travel, and even dangerous, on account of exposure to the rotten ice. . . .
1916  [The ice] had yielded somewhat--it must have gone rotten--in the weather of the day.
1958  Rotten Ice. Old ice which has become honeycombed in the course of melting and which is in an advanced stage of disintegration.