slum vs venal

slum

noun
  • A dilapidated neighborhood where many people live in a state of poverty. 

  • Slumgullion; a meat-based stew. 

  • Inexpensive trinkets awarded as prizes in a carnival game. 

verb
  • To visit a neighborhood of a status below one's own. 

venal

adj
  • Capable of being bought (of a person); willing to take bribes. 

  • Of a position, privilege etc.: available for purchase rather than assigned on merit. 

  • Venous; pertaining to veins. 

  • Corrupt, mercenary. 

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