assoil vs muss

assoil

verb
  • To make (something) dirty or soiled; to soil; to stain; to sully. 

  • Followed by from or of: to release or set free (someone) from a liability, an obligation, etc.; to discharge. 

muss

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

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

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