prove out

prove out

1. To show the validity of something. A noun or pronoun can be used between "prove" and "out." If you can prove out these allegations, that company will soon be faced with a scandal.
2. To succeed. A noun or pronoun can be used between "prove" and "out." My hypothesis still has not proved out, and I can't determine why.
See also: out, prove
Farlex Dictionary of Idioms.

prove out

Succeed, turn out well, as in Farm-raised trout has proved out so well that the fish industry plans to experiment with other species . [Mid-1900s]
See also: out, prove
The American Heritage® Dictionary of Idioms by Christine Ammer.
See also:
  • prove (something) to (one)
  • prove to
  • fend and prove
  • go to show
  • build a case
  • careful
  • (be) careful what you wish for(, (because) you just might get it)
  • because
  • give (someone) a second chance