jade vs ryegrass

jade

noun
  • A succulent plant, Crassula ovata. 

  • A bad-tempered or disreputable woman. 

  • A semiprecious stone, either nephrite or jadeite, generally green or white in color, often used for carving figurines. 

  • A bright shade of slightly bluish or greyish green, typical of polished jade stones. 

  • A horse too old to be put to work. 

adj
  • Of a grayish shade of green, typical of jade stones. 

verb
  • To fatigue, tire, or weary (someone or something). 

ryegrass

noun
  • A collection of plants of any of the species, as in a lawn or field. 

  • Any of several species of tufted grasses of the genus Lolium. 

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