hieroglyphic vs purblind

hieroglyphic

adj
  • difficult to decipher 

  • of, relating to, or written with this system of symbols 

noun
  • Undecipherable handwriting or secret symbol. 

  • Any symbol used in this system; a hieroglyph. 

  • A writing system of ancient Egypt, Minoans, Maya and other civilizations, using pictorial symbols to represent individual sounds as a rebus 

purblind

adj
  • Lacking in discernment or understanding. 

  • Partially blind. 

  • Near-sighted or dim-sighted. 

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