spinelessness vs strengthlessness

spinelessness

noun
  • The state or quality of being spineless (not having a spine (literally or figuratively)); cowardice. 

strengthlessness

noun
  • The state of being without power, impotence. 

  • The state of being without talent, talentlessness. 

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