(v): establish or strengthen as with new evidence or facts
(v): check or regulate (a scientific experiment) by conducting a parallel experiment or comparing with another standard
(v): put to the test, as for its quality, or give experimental use to
(v): attach or append a legal verification to (a pleading or petition)
(v): strengthen or make more firm
(v): to declare or affirm solemnly and formally as true
(v): state emphatically and authoritatively
