echoism vs parable

echoism

noun
  • The practice of creating words or language by imitating sounds from the environment. 

parable

verb
  • To represent by parable. 

noun
  • A short narrative illustrating a lesson (usually religious/moral) by comparison or analogy. 

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