skewness vs stonewall

skewness

noun
  • The property of being skew. 

  • A measure of the asymmetry of the probability distribution of a real-valued random variable; is the third standardized moment, defined as scriptstyle 𝛾₁=(𝜇₃)/(𝜎³),! where 𝜇₃ is the third moment about the mean and 𝜎 is the standard deviation. 

stonewall

noun
  • An obstruction. 

  • An alcoholic drink popular in colonial America, consisting of apple cider (or sometimes applejack) mixed with rum (or sometimes gin or whisky). 

  • A refusal to cooperate. 

verb
  • To obstruct. 

  • To refuse to answer or cooperate, especially in supplying information. 

adj
  • Certain, definite. 

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