sonant vs spoken

sonant

adj
  • Of or pertaining to sound; sounding. 

  • Voiced. 

noun
  • A voiced speech sound. 

spoken

adj
  • Produced by articulate sounds. 

  • Relating to speech 

  • Speaking in a specified way 

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