exoneration vs imputation

exoneration

noun
  • The state of being disburdened or freed from a charge. 

  • An act of disburdening, discharging, or freeing morally from a charge or imputation. 

imputation

noun
  • That which has been imputed or charged. 

  • A setting of something to the account of; the attribution of personal guilt or personal righteousness of another. 

  • A distribution that is efficient and individually rational. 

  • The process of replacing missing data with substituted values. 

  • Opinion; intimation; hint. 

  • Charge or attribution of evil; censure; reproach; insinuation. 

  • The statistical inference of unobserved genotypes. 

  • The act of imputing or charging; attribution; ascription. 

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