collect vs propagate

collect

verb
  • To get; particularly, get from someone. 

  • To infer; to conclude. 

  • To accumulate (a number of similar or related objects), particularly for a hobby or recreation. 

  • To gather together; amass. 

  • To come together in a group or mass. 

  • To collect payments. 

  • To collide with or crash into (another vehicle or obstacle). 

noun
  • The prayer said before the reading of the epistle lesson, especially one found in a prayerbook, as with the Book of Common Prayer. 

adv
  • With payment due from the recipient. 

adj
  • To be paid for by the recipient, as a telephone call or a shipment. 

propagate

verb
  • To spread from person to person; to extend the knowledge of; to originate and spread; to carry from place to place; to disseminate. 

  • To cause to take effect on all relevant devices in a network. 

  • To produce young; to be produced or multiplied by generation, or by new shoots or plants. 

  • To cause to spread to extend; to impel or continue forward in space. 

  • To cause to continue or multiply by generation, or successive production. 

  • To generate; to produce. 

  • To take effect on all relevant devices in a network. 

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