carriage vs mezzotint

carriage

noun
  • The part of a typewriter supporting the paper. 

  • The charge made for conveying (especially in the phrases carriage forward, when the charge is to be paid by the receiver, and carriage paid). 

  • A shopping cart. 

  • The act of conveying; carrying. 

  • A (mostly four-wheeled) lighter vehicle chiefly designed to transport people, generally drawn by horse power. 

  • Means of conveyance. 

  • A railroad car 

  • A stroller; a baby carriage. 

  • The manner or posture in which one holds or positions a body part, such as one's arm or head. 

mezzotint

noun
  • An etching or print made using this method. 

  • A form of intaglio etching in which a metal plate is roughened evenly and then smoothed to bring out an image. 

verb
  • To make such etchings 

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