Prove, v. i. 1. To make trial; to essay.
2. To be found by experience, trial, or result; to turn out to be; as, a medicine proves salutary; the report proves false. “The case proves mortal.” Arbuthnot.
So life a winter's morn may prove. Keble.
3. To succeed; to turn out as expected. “The experiment proved not.” Bacon.