adhesion vs paction

adhesion

noun
  • An agreement to adhere. 

  • An abnormal union of surface by the formation of new tissue resulting from an inflammatory process. 

  • Persistent attachment or loyalty. 

  • The ability of a substance to stick to an unlike substance. 

  • The binding of a cell to a surface or substrate. 

  • The frictional grip on a surface, of wheels, shoes etc. 

paction

noun
  • A pact, an agreement. 

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

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