boulevardier vs flaneur

boulevardier

verb
  • To strut or show off like a boulevardier. 

noun
  • A man who frequents the boulevards; thus, a man about town or bon vivant. 

  • An alcoholic drink similar to a negroni but made with bourbon instead of gin. 

flaneur

verb
  • To wander aimlessly or at a lounging pace. 

noun
  • One who wanders aimlessly, who roams, who travels at a lounging pace. 

  • An idler, a loafer. 

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