atramental vs pitchy

atramental

adj
  • Of or relating to ink; inky; black. 

pitchy

adj
  • Very dark black; pitch-black. 

  • Off pitch; out of tune. 

  • Of, pertaining to, or resembling pitch. 

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