break ground vs motivate

break ground

verb
  • To initiate a new venture, or to advance beyond previous achievements. 

  • To begin digging in the earth at the start of a new construction, or, originally, for cultivation. 

  • To separate from the ground on takeoff; to become airborne. 

  • To lift off the sea bottom when being weighed. 

motivate

verb
  • To animate; to propel; to cause to take action 

  • To provide someone with an incentive to do something; to encourage. 

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