disproportion vs pair off

disproportion

verb
  • To make unsuitable in quantity, form, or fitness; to violate symmetry in; to mismatch. 

noun
  • the disproportion of the length of a building to its height 

  • Lack of suitableness, adequacy, or due proportion to an end or use; unsuitableness. 

  • The state of being out of proportion; an abnormal or improper ratio; an imbalance. 

pair off

verb
  • To join two people into a relationship. 

  • To separate into groups of two. 

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