get going vs initiate

get going

verb
  • To begin or commence. 

  • To talk passionately without interruption. 

  • To cause someone to talk passionately without interruption. 

  • To cry or bawl loudly. 

  • To arouse sexually. 

  • To leave, or depart. 

  • To excite intellectually. 

initiate

verb
  • To begin; to start. 

  • To instruct in the rudiments or principles; to introduce. 

  • To do the first act; to perform the first rite; to take the initiative. 

  • To confer membership on; especially, to admit to a secret order with mysterious rites or ceremonies. 

noun
  • One who is oriented in and familiar with a topic or subject; especially, one who is an expert in it. 

  • A new member of an organization. 

  • One who has been through a ceremony of initiation. 

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