ornament vs stain

ornament

verb
  • To add to. 

  • To decorate. 

noun
  • The articles used in church services. 

  • A characteristic that has a decorative function (typically in order to attract a mate) 

  • A musical flourish that is unnecessary to the overall melodic or harmonic line, but serves to decorate that line. 

  • An element of decoration; that which embellishes or adorns. 

  • A Christmas tree decoration. 

stain

verb
  • To discolour. 

  • To cause to seem inferior or soiled by comparison. 

  • To coat a surface with a stain 

  • To treat (a microscopic specimen) with a dye, especially one that dyes specific features 

  • To taint or tarnish someone's character or reputation 

  • To become stained; to take a stain. 

noun
  • A reagent or dye used to stain microscope specimens so as to make some structures visible. 

  • A discoloured spot or area. 

  • Any of a number of non-standard tinctures used in modern heraldry. 

  • A blemish on one's character or reputation. 

  • A substance used to soak into a surface and colour it. 

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