intelligibility vs scribble

intelligibility

noun
  • The quality of recorded speech of every word being understandable. 

  • That which is intelligible; the degree to which something is intelligible. 

scribble

noun
  • Careless, hasty writing, doodle or drawing 

verb
  • To write badly; to work as an inferior author or journalist. 

  • To doodle. 

  • To write or draw carelessly and in a hurry. 

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