round up vs scatter

round up

verb
  • To arrest or detain a group of people without individualized suspicion or cause, often as a form of targeted persecution. 

  • To gather (cattle) together by riding around them. 

  • To round (a number) to the smallest integer that is not less than it, or to some other greater value, especially a whole number of hundreds, thousands, etc. 

  • To collect or gather (something) together. 

scatter

verb
  • To frustrate, disappoint, and overthrow. 

  • To (cause to) separate and go in different directions; to disperse. 

  • Of a pitcher: to keep down the number of hits or walks. 

  • To deflect (radiation or particles). 

  • To occur or fall at widely spaced intervals. 

  • To distribute loosely as by sprinkling. 

  • To be dispersed upon. 

noun
  • The act of scattering or dispersing. 

  • A collection of dispersed objects. 

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