glacé vs scumble

glacé

verb
  • To give a glossy surface to. 

adj
  • coated with sugar; candied or crystallised 

  • having a glossy surface 

scumble

verb
  • To apply an opaque glaze to an area of a painting to make it softer or duller. 

noun
  • An opaque kind of glaze (layer of paint). 

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