validate

To establish the soundness, accuracy, or legitimacy of: synonym: confirm.

To declare or make legally valid.

To mark with an indication of official sanction.

To make valid; confirm; give legal force to.

To test the validity of.

To confirm; to render valid; to give legal force to.

Check or prove the validity of.

declare or make legally valid

make valid or confirm the validity of

prove valid; show or confirm the validity of something