apricot vs indigo

apricot

adj
  • Of a pale yellowish-orange colour, like that of an apricot. 

noun
  • The junction of the brain and brain stem on a target, used as an aiming point to ensure a one-shot kill. 

  • A pale yellow-orange colour, like that of an apricot fruit. 

  • A round sweet and juicy stone fruit, resembling peach or plum in taste, with a yellow-orange flesh, lightly fuzzy skin and a large seed inside. 

  • The apricot tree, Prunus armeniaca 

  • A dog with an orange-coloured coat. 

indigo

adj
  • having a deep purplish-blue colour 

noun
  • A purplish-blue colour 

  • An indigo-colored dye obtained from certain plants (the indigo plant or woad), or a similar synthetic dye. 

  • An indigo plant, such as from species in genera Indigofera, Amorpha (false indigo), Baptisia (wild indigo), and Psorothamnus and Dalea (indigo bush). 

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