cryptology vs speech

cryptology

noun
  • Secret or enigmatical language. 

  • The science or study of mathematical, linguistic, and other coding patterns and histories. 

  • The practice of analysing encoded messages, in order to decode them. 

speech

noun
  • Language used orally, rather than in writing. 

  • The ability to speak; the faculty of uttering words or articulate sounds and vocalizations to communicate. 

  • A formal session of speaking, especially a long oral message given publicly by one person. 

  • An utterance that is quoted; see direct speech, reported speech 

  • Public talk, news, gossip, rumour. 

  • The act of speaking, a certain style of it. 

  • A dialect, vernacular, or (dated) a language. 

verb
  • To make a speech; to harangue. 

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