heliotrope vs tinge

heliotrope

noun
  • A light purple or violet colour. 

  • Particularly, a purple-flowered plant of the species Heliotropium arborescens. 

  • A bloodstone (a variety of quartz). 

  • An instrument, employed in triangulation, that uses a mirror to reflect sunlight toward another, very distant, surveyor. 

  • The fragrance of heliotrope flowers. 

  • A plant that turns so that it faces the sun. 

adj
  • Light purple or violet. 

  • Keeping one’s face turned toward the sun. 

tinge

noun
  • The degree of vividness of a colour; hue, shade, tint. 

  • A small added amount of colour; (by extension) a small added amount of some other thing. 

verb
  • To add a small amount of colour; to tint; (by extension) to add a small amount of some other thing. 

  • To change slightly in shade due to the addition of colour; (by extension) to change slightly in quality due to the addition of some other thing. 

  • To affect or alter slightly, particularly due to the actual or metaphorical influence of some element or thing. 

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