lecture vs speel

lecture

verb
  • To preach, to berate, to scold. 

  • To teach (somebody) by giving a speech on a given topic. 

noun
  • a class that primarily consists of a (weekly or other regularly held) lecture (as in sense 1) 

  • A berating or scolding. 

  • A spoken lesson or exposition, usually delivered to a group. 

speel

verb
  • To talk at length, to spiel. 

  • To run. 

  • To climb. 

  • To lake, play, sport, take amusement. 

noun
  • A splinter; a strip of wood or metal. 

  • A game. 

  • A story; a spiel. 

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