color up vs enamel

color up

verb
  • To blush (to go red). 

  • To exchange a high number of low-value chips (of one color) for a lower number of higher value (of a different color), but keeping the same overall value. 

enamel

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

  • To form a glossy surface like enamel upon. 

  • To variegate with colours, as if with enamel. 

  • To coat or decorate with enamel. 

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

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

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

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

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