verify -
v.tr. (-ies, -ied)
1
establish the truth or correctness of by examination or demonstration (must
verify the statement; verified my figures).
2 (of an event etc.) bear out or fulfil (a prediction or promise).
3 Law
append an affidavit to (pleadings); support (a statement) by testimony or proofs.
verifiable adj. verifiably adv. verifier n. [ME f. OF verifier f. med.L verificare f. verus true]