tempera vs veneer

tempera

noun
  • A painting done in this medium. 

  • A medium used to bind pigments in painting, as well as the associated artistic techniques. 

veneer

noun
  • A thin decorative covering of fine material (usually wood) applied to coarser wood or other material. 

  • An attractive appearance that covers or disguises one's true nature or feelings. 

verb
  • To apply veneer to. 

  • To disguise with apparent goodness. 

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