spinelessness vs tameness

spinelessness

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

tameness

noun
  • The result or product of being tame. 

  • The state or quality of being tame. 

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