oratorize

From orator +‎ -ize.

oratorize (third-person singular simple present oratorizes, present participle oratorizing, simple past and past participle oratorized)

1. (humorous or derogatory) To play the orator.
   • 1836 March – 1837 October, Charles Dickens, “(please specify the chapter name)”, in The Posthumous Papers of the Pickwick Club, London: Chapman and Hall, […], published 1837, →OCLC:

     In this order they reached the magistrate's house; the chairmen trotting, the prisoners following, Mr. Pickwick oratorizing, and the crowd shouting.