flaneur vs skulker

flaneur

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

  • An idler, a loafer. 

verb
  • To wander aimlessly or at a lounging pace. 

skulker

noun
  • One who moves in a stealthy or furtive way; one who comes or goes while trying to avoid detection. 

  • One who stays where they cannot be seen (often in a cowardly way or with the intent of doing harm). 

  • One who avoids an obligation or responsibility. 

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