bloviate

verb

Etymology: 1845, US, Ohio, from blow (“speak idly, boast”) + -i- + -ate, by analogy with deviate.

1. To speak or discourse at length in a pompous or boastful manner.

   “Peter P. Low, Esq., will with open throat…bloviate about the farmers being taxed upon the full value of their farms, while bankers are released from taxation.”

   “His passion when bloviating was furious and terrible to look upon; but there was nothing to it more than sound and pretense.”