commission vs commissioning

commission

noun
  • A body or group of people, officially tasked with carrying out a particular function. 

  • A fee charged by an agent or broker for carrying out a transaction. 

  • The thing to be done as agent for another. 

  • The act of committing (e.g. a crime or error). 

  • A sending or mission (to do or accomplish something). 

  • An official charge or authority to do something, often used of military officers. 

verb
  • To put into active service. 

  • To send or officially charge someone or some group to do something. 

  • To place an order for (often a piece of art). 

commissioning

noun
  • The process of assuring that all systems and components of a major piece of equipment, a process, a building or similar are designed, installed and tested according to the operational requirements of the owner or final client. 

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