confirmatory

• (Received Pronunciation) IPA^(key): /kənˈfɜːmət(ə)ɹi/
• (General American) IPA^(key): /kənˈfɝmətɔɹi/

confirmatory (comparative more confirmatory, superlative most confirmatory)

1. Serving to confirm something.
   • 1850, Charles Dickens, chapter 41, in David Copperfield‎:

     I replied, as I usually did whenever I had a chance, that nobody had ever loved anybody else as I loved Dora. Traddles came to my assistance with a confirmatory murmur.

   • 1924, Herman Melville, Billy Budd, London: Constable & Co., Chapter 16,

     "Do you come to me, Master-at-arms, with so foggy a tale? As to Budd, cite me an act or spoken word of his confirmatory of what you in general charge against him. […] "

   • 1986, Mark S. Gold and A.L.C. Pottash, Diagnostic and Laboratory Testing in Psychiatry, New York and London: Plenum Medical Book Company, Chapter 3, p. 43,

     The main indication for performing the DST is for the confirmation of suspected major depression. A positive test is excellent confirmatory evidence of the diagnosis.