imbecility vs meshugaas

imbecility

noun
  • Something imbecilic; a stupid action, behaviour, etc. 

  • The quality of being imbecile; weakness; feebleness, especially of mind. 

meshugaas

noun
  • nonsense; rubbish; craziness 

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