apologetic vs hangdog

apologetic

adj
  • Having the character of apology; regretfully excusing. 

hangdog

adj
  • Low; sneaking; ashamed. 

noun
  • A base, degraded person. 

verb
  • To move or loiter in a sneaking or ashamed manner. 

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