scrutiny vs vacuity

scrutiny

noun
  • Intense study of someone or something. 

  • Thorough inspection of a situation or a case. 

  • A ticket, or little paper billet, on which a vote is written. 

  • An examination by a committee of the votes given at an election, for the purpose of correcting the poll. 

  • An examination of catechumens, in the last week of Lent, who were to receive baptism on Easter Day. 

vacuity

noun
  • Idleness; listlessness. 

  • Emptiness. 

  • Physical emptiness, an absence of matter; vacuum. 

  • An empty or inane remark or thing. 

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