extolment vs tribute

extolment

tribute

verb
  • To pay as tribute. 

noun
  • A certain proportion of the mined ore, or of its value, given to the miner as payment. 

  • A payment made by one nation to another in submission. 

  • Extortion; protection money. 

  • An homage made in a body of work to another work or creator. 

  • An acknowledgment of gratitude, respect or admiration; an accompanying gift. 

  • A payment made by a feudal vassal to his lord. 

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