bequest vs heritability

bequest

noun
  • A person's inheritance; an amount of property given by will. 

  • The transfer of property upon the owner's death according to the will of the deceased. 

  • That which has been handed down or transmitted. 

  • That which is left by will; a legacy. 

  • The act of bequeathing or leaving by will. 

verb
  • To give as a bequest; bequeath. 

heritability

noun
  • The condition of being inheritable 

  • The ratio of the genetic variance of a population to its phenotypic variance; i.e. the proportion of variability that is genetic in origin 

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