carline vs spinster

carline

noun
  • A woman; a hag or witch. 

  • A line of automobiles awaiting access to the same building or similar location. 

  • Carline thistle. 

  • A piece of squared timber fitted fore-and-aft between the deck beams of a wooden ship to provide support for the deck planking. 

spinster

noun
  • A woman who has never been married, especially one past the typical marrying age according to social traditions. 

  • A spider; an insect (such as a silkworm) which spins thread. 

  • One who spins (puts a spin on) a political media story so as to give something a favorable or advantageous appearance; a spin doctor, spin merchant or spinmeister. 

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