praxis vs tune-up

praxis

noun
  • An example or form of exercise, or a collection of such examples, for practice. 

  • The synthesis of theory and practice, without presuming the primacy of either. 

  • The deliberate action of a rational being. 

  • Custom or established practice. 

  • The practical application of any branch of learning. 

tune-up

noun
  • A series of preparations for vigorous exercise; a warm-up 

  • A series of adjustments to an engine in order to improve its performance 

  • A match or race (frequently one exhibition in nature) contested as preparation for a match or race of high stakes. 

How often have the words praxis and tune-up occurred in a corpus of books? (source: Google Ngram Viewer )