proceeding vs undertaking

proceeding

noun
  • The act of one who proceeds, or who prosecutes a design or transaction 

  • An event or happening; something that happens 

  • A published collection of papers presented at an academic conference, or representing the acts of a learned society. 

  • A measure or step taken in a course of business; a transaction 

  • Progress or movement from one thing to another. 

  • Any legal action, especially one that is not a lawsuit. 

undertaking

noun
  • The act of one who undertakes (in either sense). 

  • A promise or pledge; a guarantee. 

  • That which is undertaken; any business, work, or project which a person engages in, or attempts to perform; an enterprise. 

  • The business of an undertaker, or the management of funerals. 

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