dusky vs ebony

dusky

adj
  • Having a shade of color that is rather dark. 

  • Ashen; having a greyish skin coloration. 

  • Dimly lit, as at dusk (evening). 

noun
  • A dusky dolphin. 

  • A dusky grouse. 

  • A dusky shark. 

ebony

adj
  • A deep, dark black colour. 

  • Made of ebony wood. 

  • Dark-skinned; black; especially in reference to African-Americans. 

noun
  • A black key on a piano or other keyboard instrument. 

  • A tree that yields such wood. 

  • A deep, dark black colour. 

  • A hard, dense, deep black wood from various subtropical and tropical trees, especially of the genus Diospyros. 

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