husbandless vs spinster

husbandless

adj
  • Without a husband. 

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 husbandless and spinster occurred in a corpus of books? (source: Google Ngram Viewer )