collecting up vs roundup

collecting up

roundup

noun
  • An upward curvature or convexity, as in the deck of a vessel. 

  • The similar police activity of gathering together suspects. 

  • An activity in which cattle are herded together in order to be inspected, counted, branded or shipped. 

  • The forcible gathering together of any particular group of people. 

  • The summary to a news bulletin. 

  • The finishing of an arrangement. 

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