lover vs missus

lover

noun
  • An informal term of address for any friend. 

  • A person who loves something. 

  • One who loves and cares for another person in a romantic way; a sweetheart, love, soulmate, boyfriend, girlfriend, or spouse. 

  • A sexual partner, especially one with whom someone is having an affair. 

missus

noun
  • Term of address for a woman. 

  • Wife or girlfriend. 

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