realign vs regroup

realign

verb
  • To align again or anew. 

  • To bring back into alignment. 

regroup

verb
  • To pause and get organized again. 

  • To group or categorize again. 

noun
  • An act of regrouping. 

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