braggadocio

Etymology

After Braggadocchio, boastful character in Edmund Spenser's The Faerie Queene (1590), apparently a pseudo-Italian coinage.

noun

1. A braggart.
   […] the Gasconads of France, Rodomontads of Spain, Fanfaronads of Italy, and Bragadochio brags of all other countries, could no more astonish his invincible heart, then would the cheeping of a mouse a bear robbed of her whelps. 1652, Thomas Urquhart, “Εκσκυβαλαυρον (The Jewel)”, in The Works of Sir Thomas Urquhart of Cromarty, Knight, Edinburgh: Thomas Maitland Dundrennan, published 1834, page 217
2. Empty boasting.
   Russia’s use of social media in America’s 2016 presidential race reflected particularly poorly on Facebook, which was seen as doing too little to stamp out deceptive ads and fake news stories. As for nuclear braggadocio on Twitter, let’s not even go there. 2018-01-20, Eve Smith, “The techlash against Amazon, Facebook and Google—and what they can do”, in The Economist