catflap.org Online Dictionary Query

  Protest \Pro*test"\, v. t.
     1. To make a solemn declaration or affirmation of; to
        proclaim; to display; as, to protest one's loyalty.
  
              I will protest your cowardice.        --Shak.
  
     2. To call as a witness in affirming or denying, or to prove
        an affirmation; to appeal to.
  
              Fiercely [they] opposed My journey strange, with
              clamorous uproar Protesting fate supreme. --Milton.
  
     To protest a bill or note (Law), to make a solemn written
        declaration, in due form, on behalf of the holder, against
        all parties liable for any loss or damage to be sustained
        by the nonacceptance or the nonpayment of the bill or
        note, as the case may be. This should be made by a notary
        public, whose seal it is the usual practice to affix.
        --Kent. Story.