PROTEST', L. protestor pro and testor, to affirm it.

1. To affirm with solemnity to make a solemn declaration of a fact or opinion as, I protest to you, I have no knowledge of the transaction.
2. To make a solemn declaration expressive of opposition with against as, he protests against your votes.

The conscience has power to protest against the exorbitancies of the passions.

3. To make a formal declaration in writing against a public law or measure. It is the privilege of any lord in parliament to protest against a law or resolution.

PROTEST', To call as a witness in affirming or denying, or to prove an affirmation.

Fiercely they oppos'd

My journey strange, with clamorous uproar

Protesting fate supreme.

1. To prove to show to give evidence of. Not in use.
2. In commerce, to protest a bill of exchange, is for a notary public, at the request of the payee, to make a formal declaration under hand and seal, against the drawer of the bill, on account of non-acceptance or non-payment, for exchange, cost,commissions, damages and interest of which act the indorser must be notified within such time as the law or custom prescribes. In like manner, notes of hand given to a banking corporation are protested for non-payment.