speel vs treatise

speel

noun
  • A story; a spiel. 

  • A splinter; a strip of wood or metal. 

  • A game. 

verb
  • To talk at length, to spiel. 

  • To run. 

  • To climb. 

  • To lake, play, sport, take amusement. 

treatise

noun
  • A formal, usually lengthy, systematic discourse on some subject. 

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