Confirm

To make firm or firmer; to add strength to; to establish; as, health is confirmed by exercise.

To strengthen in judgment or purpose.

To give new assurance of the truth of; to render certain; to verify; to corroborate; as, to confirm a rumor.

To render valid by formal assent; to complete by a necessary sanction; to ratify; as, to confirm the appoinment of an official; the Senate confirms a treaty.

To administer the rite of confirmation to. See Confirmation, 3.

establish or strengthen as with new evidence or facts; "his story confirmed my doubts"; "The evidence supports the defendant"