firing vs glazing

firing

noun
  • The process of applying heat or fire, especially to clay, etc., to produce pottery. 

  • Cauterization. 

  • The dismissal of someone from a job. 

  • The fuel for a fire. 

  • The discharge of a gun or other weapon. 

  • The act of adding fuel to a fire. 

glazing

noun
  • The material used in such act or process; glaze. 

  • The act or process of glazing or an instance thereof. 

  • All the windows of a building. 

  • The art of covering with a vitreous substance. 

  • The part of a window or wall made of glass or another transparent material. 

  • Semi-transparent colours painted thinly over others to modify the effect. 

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