fraidy vs poltroon

fraidy

adj

  • Cowardly. 

  • Afraid. 

poltroon

adj

  • Cowardly. 

noun

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

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