boatwoman vs southwester

boatwoman

noun
  • A woman who manages a boat. 

southwester

noun
  • A long raincoat, often worn at sea. 

  • A waterproof hat, often of oilskin and with a long brim at the back covering the neck, designed to repel wind and rain. 

  • A strong wind blowing from the southwest. 

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