muss vs vex

muss

verb
  • To rumple, tousle or make (something) untidy. 

noun
  • A mess (disagreeable mixture or confusion of things; disorder) 

vex

verb
  • To twist, to weave. 

  • To toss back and forth; to agitate; to disquiet. 

  • To cause (mental) suffering to; to distress. 

  • To annoy, irritate. 

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