obiter dictum vs straightness

obiter dictum

noun
  • An incidental remark; especially (law) a statement or remark in a court's judgment that is not essential to the disposition of the case. 

straightness

noun
  • The result or product of being straight. 

  • The state or quality of being straight (especially in the sense of "heterosexual"). 

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