pact vs paction

pact

verb
  • To form a pact; to agree formally. 

noun
  • An agreement; a compact; a covenant. 

  • An alliance or coalition. 

  • An agreement between two or more nations 

paction

verb
  • To form a pact; to make a binding agreement. 

noun
  • A pact, an agreement. 

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