avoider vs poltroon

avoider

noun
  • One who avoids, shuns, or escapes. 

  • One who carries anything away, or the vessel in which things are carried away. 

poltroon

noun
  • An ignoble or total coward; a dastard; a mean-spirited wretch. 

adj
  • Cowardly. 

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