discoursing vs spraff

discoursing

noun

  • conversation 

spraff

noun

  • Chat, patter. 

  • Spiel. 

  • Speech. 

verb

  • To speak (in general). 

  • To speak excessively or pointlessly. 

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