Rodomontade

Rod`o*mon*tade" (?), n. [F., fr. It. rodomontana. See Rodomont, n.] Vain boasting; empty bluster or vaunting; rant.

I could show that the rodomontades of Almanzor are neither so irrational nor impossible.
Dryden.

Rod`o*mon*tade", v. i. To boast; to brag; to bluster; to rant.