enamel vs glazing

enamel

noun
  • An opaque, glassy coating baked onto metal or ceramic objects. 

  • The hard covering on the exposed part of a tooth. 

  • A coating that dries to a hard, glossy finish. 

  • A cosmetic intended to give the appearance of a smooth and beautiful complexion. 

verb
  • To form a glossy surface like enamel upon. 

  • To variegate with colours, as if with enamel. 

  • To coat or decorate with enamel. 

  • To disguise with cosmetics, as a woman's complexion. 

glazing

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

  • 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 material used in such act or process; glaze. 

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

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