ebon vs melanoid

ebon

noun

  • Ebony; an ebony tree. 

adj

  • Black in colour. 

  • Made of ebony. 

melanoid

adj

  • Relating to, or afflicted with, melanosis. 

  • Relating to, or resembling, melanin. 

noun

  • Synonym of melanoidin 

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