fantail vs mortise

fantail

noun
  • A brimmed hat with just the back of the brim turned up. 

  • Any of several birds, of the genus Rhipidura, from Asia, Australia and New Zealand. 

  • Any of several goldfish having a large fan-shaped tail. 

  • Any of several domestic varieties of pigeon having a fan-shaped tail. 

  • An overhanging deck at the stern of a ship. 

  • A small windmill mounted at right angles to the sails, at the rear of the windmill, used to turn the cap automatically to bring it into the wind. 

mortise

noun
  • A hole that is made to receive a tenon so as to form a joint. 

  • Stability; power of adhesion. 

verb
  • To adjust the horizontal space between selected pairs of letters; to kern. 

  • To join by a mortise and tenon. 

  • To cut a mortise in. 

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