prove

Provide evidence for.

Cause to puff up with a leaven.

Increase in volume.

Be shown or be found to be.

“She proved to be right”

Put to the test, as for its quality, or give experimental use to.

Establish the validity of something, as by an example, explanation or experiment.

Obtain probate of.

“prove a will”

Prove formally; demonstrate by a mathematical, formal proof.

Take a trial impression of.