grapefruit vs yellow-red

grapefruit

noun
  • The tree of the species Citrus paradisi, a hybrid of pomelo (Citrus maxima) and sweet orange. 

  • The large spherical tart fruit produced by this tree. 

yellow-red

noun
  • The colour orange. 

adj
  • Consisting of yellow and red colours individually. 

  • yellow-red 

  • Of a colour between yellow and red; orange. 

How often have the words grapefruit and yellow-red occurred in a corpus of books? (source: Google Ngram Viewer )