cryptograph vs encode

cryptograph

verb
  • To write text using a code or cipher. 

noun
  • A cipher or cryptogram. 

  • A device used for encrypting or decrypting text. 

encode

verb
  • To convert (plain text) into code. 

  • To constitute the code necessary for the biosynthesis of a protein by means of a matrix so as to transcribe DNA material. 

  • To convert source information into another form. 

noun
  • An encoding operation. 

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