braggadocio vs swaggering

braggadocio

noun

  • Empty boasting. 

  • A braggart. 

swaggering

noun

  • Boastful, blustering behaviour. 

adj

  • Boastful, proud, self-confident. 

How often have the words braggadocio and swaggering occurred in a corpus of books? (source: Google Ngram Viewer )